Giro Aerohead MIPS HelmetGiro’s Aerohead™ MIPS Helmet acquires the same wind-cheating profile as the innovative Aerohead Ultimate but adds increased ventilation to keep triathletes and time trialists cool when the competition is hot.By using a polycarbonate shell, Wind Tunnel™ ventilation and internal channelling, the Aerohead™ has proven to boost cooling power while remaining aerodynamic. The Aerohead™ MIPS Helmet also features a wrap-around eye shield that offers an impressive field of view with the convenience of a magnetic anchor attachment to allow easy storage of the lens in the “flipped up” position making the helmet perfect for fast swim-to-bike transitions.Features:Construction: In-Mould ConstructionPolycarbonate shellFit System: Roc Loc® AirVentilation: Vented Shield, Over-brow ventilation, 4 Wind Tunnel™ vents with internal channellingSuper Fit™ engineeringEye shield made by Zeiss® OpticsMagnetic lens anchor attachmentMIPS® technologyWeight: 450gShop all MIPS helmets - Click hereTechnologiesLenses By Zeiss® Optics Shield With Magnetic Attachment: The wrap-around eye shield offers an unblocked field of view with a huge aerodynamic benefit and the shield is made by Zeiss® Optics for unrivalled clarity. A magnetic anchor attachment keeps the shield secure, yet easy to remove, and it can be stored in the “flipped up” position.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Roc Loc® Air Fit System: This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhaust heat out of the helmet. Fit and feel adjustments mimic the Roc Loc® 5, allowing you to easily custom tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.Super Fit™ Engineering: Giro's proprietary Super Fit™ sizing system is based on “human scale factors” data and over 25 years of handcrafting helmets. By creating helmet moulds in up to 4 adult sizes to match the human body’s form, their Super Fit™ sizes comfortably and securely fit riders and feel like they are custom made just for you.Buy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Vanquish MIPS Aero HelmetWhen vital seconds need to be trimmed off your personal best the Giro Vanquish MIPS Aero Helmet is all you need. Aerodynamically designed, it is the most technologically advanced road lid on the market combining comfort, performance and protection for your finest ride yet.Unrivalled PerformanceWith its streamlined airflow reducing drag and increasing aero, all eyes are on the clock to what is certain to be your quickest time yet. The Vanquish MIPS Aero sports the impressive TransformAir technology while the progressive layering in the EPS liner an extra layer of protection to your head. For those who want only the finest protection, Giro have deployed the MIPS system technology to reduce rotational forces that can result from impacts.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Shaping the wind for you, the Vanquish is ideal in any road scenario, be it a sprint or ironman endurance event. The four-piece polycarbonate hardlocking shell moulds your head in durable safety while you are kept cool via the RocLoc Air system that adds an extra level of cooling power to your ride. Working in tandem with antimicrobial padding, sweat and odours need not concern you anymore.Having already stamped its mark on the wind tunnel the Vanquish MIPS Aero Helmet is ready to turn the clocks back to help set your fastest time yet.Features:TransformAir TechnologyEPS liner with progressive layeringIntegrated MIPS TechnologyMagnetic Vivid shield by ZeissStealth shield dockEyeglass grippersAntimicrobial paddingFeatherweight webbingFour-piece polycarbonate interlocking Hardbody shellWind Tunnel ventilationShop all MIPS helmets - Click hereBuy Giro Helmets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Vanquish MIPS Aero HelmetWhen vital seconds need to be trimmed off your personal best the Giro Vanquish MIPS Aero Helmet is all you need. Aerodynamically designed, it is the most technologically advanced road lid on the market combining comfort, performance and protection for your finest ride yet.Unrivalled PerformanceWith its streamlined airflow reducing drag and increasing aero, all eyes are on the clock to what is certain to be your quickest time yet. The Vanquish MIPS Aero sports the impressive TransformAir technology while the progressive layering in the EPS liner an extra layer of protection to your head. For those who want only the finest protection, Giro have deployed the MIPS system technology to reduce rotational forces that can result from impacts.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Shaping the wind for you, the Vanquish is ideal in any road scenario, be it a sprint or ironman endurance event. The four-piece polycarbonate hardlocking shell moulds your head in durable safety while you are kept cool via the RocLoc Air system that adds an extra level of cooling power to your ride. Working in tandem with antimicrobial padding, sweat and odours need not concern you anymore.Having already stamped its mark on the wind tunnel the Vanquish MIPS Aero Helmet is ready to turn the clocks back to help set your fastest time yet.Features:TransformAir TechnologyEPS liner with progressive layeringIntegrated MIPS TechnologyMagnetic Vivid shield by ZeissStealth shield dockEyeglass grippersAntimicrobial paddingFeatherweight webbingFour-piece polycarbonate interlocking Hardbody shellWind Tunnel ventilationShop all MIPS helmets - Click hereBuy Giro Helmets from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Switchblade MIPS HelmetThe Giro Switchblade MIPS Helmet is a downhill certified full-face helmet with a removable chinbar. Everything about the Switchblade is optimised for the descent which is why it’s certified to the highest levels of protection standards with and without the chinbar.Ventilation and Protection SecurityThis helmet features the Roc Loc Air DH fit system, which has a bumper around the dial to prevent unintentional adjustments if your helmet comes into contact with your backpack or neck brace. When the chinbar is removed, wind tunnel cheek pad ventilation adds cooling power as you start to climb. The full-cut style gives this helmet an aggressive look whilst also providing certified safety coverage, even if you do not use the chinbar.Easy to Remove and Re-installWhen your ride is all about descending, so should your helmet and the Switchblade MIPS is the only removable chinbar helmet that is truly built for the descent. When climbing back up the mountain, the chinbar is easy to remove and is done so by simply pushing the buttons under the chinbar, rotating upwards, and then removing it. It is just as easy to re-install and when fitted provides rigid and reassuring chin protection.Technologies:Hydrophilic Padding: The hydrophilic pad can absorb up to 10 times its own weight in water, helping you manage sweat while riding. The pad retains moisture to prevent sweat from dripping into your eyes, and then dries quickly. The antimicrobial X-Static™ lining helps to reduce odour, keeping your helmet fresh.P.O.V. Plus: Giro's P.O.V. Plus visor features an adjustment mechanism that lets you move the visor up and down in indexed steps. These steps include three riding positions plus a high position for goggle storage above your brow. The design allows you to easily adjust your visor with one hand while riding.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Features:Sizing Note: Fit as per size guideConstruction: In-mould constructionVentilation: 20 vents with internal channelling, Wind Tunnel™ cheek pad ventilationFit System: Roc Loc® Air DH systemRemovable chinbarP.O.V. Plus™ visorHydrophilic X-Static antimicrobial paddingSpare visor with camera mountCertified to CPSC, EN-1078 and ASTM-1952-DH with & without chinbarMIPS® equippedShop all MIPS helmets - Click hereBuy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Switchblade MIPS HelmetThe Giro Switchblade MIPS Helmet is a downhill certified full-face helmet with a removable chinbar. Everything about the Switchblade is optimised for the descent which is why it’s certified to the highest levels of protection standards with and without the chinbar.Ventilation and Protection SecurityThis helmet features the Roc Loc Air DH fit system, which has a bumper around the dial to prevent unintentional adjustments if your helmet comes into contact with your backpack or neck brace. When the chinbar is removed, wind tunnel cheek pad ventilation adds cooling power as you start to climb. The full-cut style gives this helmet an aggressive look whilst also providing certified safety coverage, even if you do not use the chinbar.Easy to Remove and Re-installWhen your ride is all about descending, so should your helmet and the Switchblade MIPS is the only removable chinbar helmet that is truly built for the descent. When climbing back up the mountain, the chinbar is easy to remove and is done so by simply pushing the buttons under the chinbar, rotating upwards, and then removing it. It is just as easy to re-install and when fitted provides rigid and reassuring chin protection.Technologies:Hydrophilic Padding: The hydrophilic pad can absorb up to 10 times its own weight in water, helping you manage sweat while riding. The pad retains moisture to prevent sweat from dripping into your eyes, and then dries quickly. The antimicrobial X-Static™ lining helps to reduce odour, keeping your helmet fresh.P.O.V. Plus: Giro's P.O.V. Plus visor features an adjustment mechanism that lets you move the visor up and down in indexed steps. These steps include three riding positions plus a high position for goggle storage above your brow. The design allows you to easily adjust your visor with one hand while riding.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Features:Sizing Note: Fit as per size guideConstruction: In-mould constructionVentilation: 20 vents with internal channelling, Wind Tunnel™ cheek pad ventilationFit System: Roc Loc® Air DH systemRemovable chinbarP.O.V. Plus™ visorHydrophilic X-Static antimicrobial paddingSpare visor with camera mountCertified to CPSC, EN-1078 and ASTM-1952-DH with & without chinbarMIPS® equippedShop all MIPS helmets - Click hereBuy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Cinder MIPS HelmetGiro's Cinder™ MIPS provides all the features an avid road rider wants in a lightweight helmet. The design is inspired by the classic aesthetic of their first-class Synthe™ helmet, offering comparable performance and style.The main features of this helmet include the Roc Loc® 5 fit system which allows you to easily dial-in both fit tension and adjust vertical position with a single hand, Air-FX padding which offers comfort on your longest rides and MIPS® to redirect impact energy, providing more protection in certain crashes.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Roc Loc® Air Fit System: This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhausts heat out of the helmet. Fit and feel adjustments mimic the Roc Loc® 5, allowing you to easily custom-tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.In-Mould Construction: This fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mould helmets lighter and cooler than traditional helmets.Features:Sizing Note: Fit as per size guideConstruction: In-mould polycarbonate shell with EPS liner, Thermoformed SL Roll Cage™ reinforcementCompact shapeAir-FX paddingPonytail compatibleFit System: Roc Loc® AirVentilation: 26 Wind Tunnel™ vents with internal channellingMIPS® equippedShop all MIPS helmets - Click hereBuy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Cinder MIPS HelmetGiro's Cinder™ MIPS provides all the features an avid road rider wants in a lightweight helmet. The design is inspired by the classic aesthetic of their first-class Synthe™ helmet, offering comparable performance and style.The main features of this helmet include the Roc Loc® 5 fit system which allows you to easily dial-in both fit tension and adjust vertical position with a single hand, Air-FX padding which offers comfort on your longest rides and MIPS® to redirect impact energy, providing more protection in certain crashes.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Roc Loc® Air Fit System: This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhausts heat out of the helmet. Fit and feel adjustments mimic the Roc Loc® 5, allowing you to easily custom-tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.In-Mould Construction: This fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mould helmets lighter and cooler than traditional helmets.Features:Sizing Note: Fit as per size guideConstruction: In-mould polycarbonate shell with EPS liner, Thermoformed SL Roll Cage™ reinforcementCompact shapeAir-FX paddingPonytail compatibleFit System: Roc Loc® AirVentilation: 26 Wind Tunnel™ vents with internal channellingMIPS® equippedShop all MIPS helmets - Click hereBuy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Cinder MIPS HelmetGiro's Cinder™ MIPS provides all the features an avid road rider wants in a lightweight helmet. The design is inspired by the classic aesthetic of their first-class Synthe™ helmet, offering comparable performance and style.The main features of this helmet include the Roc Loc® 5 fit system which allows you to easily dial-in both fit tension and adjust vertical position with a single hand, Air-FX padding which offers comfort on your longest rides and MIPS® to redirect impact energy, providing more protection in certain crashes.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Roc Loc® Air Fit System: This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhausts heat out of the helmet. Fit and feel adjustments mimic the Roc Loc® 5, allowing you to easily custom-tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.In-Mould Construction: This fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mould helmets lighter and cooler than traditional helmets.Features:Sizing Note: Fit as per size guideConstruction: In-mould polycarbonate shell with EPS liner, Thermoformed SL Roll Cage™ reinforcementCompact shapeAir-FX paddingPonytail compatibleFit System: Roc Loc® AirVentilation: 26 Wind Tunnel™ vents with internal channellingMIPS® equippedShop all MIPS helmets - Click hereBuy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Cinder MIPS HelmetGiro's Cinder™ MIPS provides all the features an avid road rider wants in a lightweight helmet. The design is inspired by the classic aesthetic of their first-class Synthe™ helmet, offering comparable performance and style.The main features of this helmet include the Roc Loc® 5 fit system which allows you to easily dial-in both fit tension and adjust vertical position with a single hand, Air-FX padding which offers comfort on your longest rides and MIPS® to redirect impact energy, providing more protection in certain crashes.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Roc Loc® Air Fit System: This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhausts heat out of the helmet. Fit and feel adjustments mimic the Roc Loc® 5, allowing you to easily custom-tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.In-Mould Construction: This fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mould helmets lighter and cooler than traditional helmets.Features:Sizing Note: Fit as per size guideConstruction: In-mould polycarbonate shell with EPS liner, Thermoformed SL Roll Cage™ reinforcementCompact shapeAir-FX paddingPonytail compatibleFit System: Roc Loc® AirVentilation: 26 Wind Tunnel™ vents with internal channellingMIPS® equippedShop all MIPS helmets - Click hereBuy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Cinder MIPS HelmetGiro's Cinder™ MIPS provides all the features an avid road rider wants in a lightweight helmet. The design is inspired by the classic aesthetic of their first-class Synthe™ helmet, offering comparable performance and style.The main features of this helmet include the Roc Loc® 5 fit system which allows you to easily dial-in both fit tension and adjust vertical position with a single hand, Air-FX padding which offers comfort on your longest rides and MIPS® to redirect impact energy, providing more protection in certain crashes.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Roc Loc® Air Fit System: This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhausts heat out of the helmet. Fit and feel adjustments mimic the Roc Loc® 5, allowing you to easily custom-tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.In-Mould Construction: This fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mould helmets lighter and cooler than traditional helmets.Features:Sizing Note: Fit as per size guideConstruction: In-mould polycarbonate shell with EPS liner, Thermoformed SL Roll Cage™ reinforcementCompact shapeAir-FX paddingPonytail compatibleFit System: Roc Loc® AirVentilation: 26 Wind Tunnel™ vents with internal channellingMIPS® equippedShop all MIPS helmets - Click hereBuy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Cinder MIPS HelmetGiro's Cinder™ MIPS provides all the features an avid road rider wants in a lightweight helmet. The design is inspired by the classic aesthetic of their first-class Synthe™ helmet, offering comparable performance and style.The main features of this helmet include the Roc Loc® 5 fit system which allows you to easily dial-in both fit tension and adjust vertical position with a single hand, Air-FX padding which offers comfort on your longest rides and MIPS® to redirect impact energy, providing more protection in certain crashes.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Roc Loc® Air Fit System: This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhausts heat out of the helmet. Fit and feel adjustments mimic the Roc Loc® 5, allowing you to easily custom-tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.In-Mould Construction: This fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mould helmets lighter and cooler than traditional helmets.Features:Sizing Note: Fit as per size guideConstruction: In-mould polycarbonate shell with EPS liner, Thermoformed SL Roll Cage™ reinforcementCompact shapeAir-FX paddingPonytail compatibleFit System: Roc Loc® AirVentilation: 26 Wind Tunnel™ vents with internal channellingMIPS® equippedShop all MIPS helmets - Click hereBuy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.
Giro Aerohead MIPS HelmetGiro’s Aerohead™ MIPS Helmet acquires the same wind-cheating profile as the innovative Aerohead Ultimate but adds increased ventilation to keep triathletes and time trialists cool when the competition is hot.By using a polycarbonate shell, Wind Tunnel™ ventilation and internal channelling, the Aerohead™ has proven to boost cooling power while remaining aerodynamic. The Aerohead™ MIPS Helmet also features a wrap-around eye shield that offers an impressive field of view with the convenience of a magnetic anchor attachment to allow easy storage of the lens in the “flipped up” position making the helmet perfect for fast swim-to-bike transitions.Features:Construction: In-Mould ConstructionPolycarbonate shellFit System: Roc Loc® AirVentilation: Vented Shield, Over-brow ventilation, 4 Wind Tunnel™ vents with internal channellingSuper Fit™ engineeringEye shield made by Zeiss® OpticsMagnetic lens anchor attachmentMIPS® technologyWeight: 450gShop all MIPS helmets - Click hereTechnologiesLenses By Zeiss® Optics Shield With Magnetic Attachment: The wrap-around eye shield offers an unblocked field of view with a huge aerodynamic benefit and the shield is made by Zeiss® Optics for unrivalled clarity. A magnetic anchor attachment keeps the shield secure, yet easy to remove, and it can be stored in the “flipped up” position.MIPS (Multi-directional Impact Protection System) The Mips system is designed to provide added safety for helmets in many accidents. For certain impacts, the Mips system can reduce harmful rotational motion that might otherwise be transferred to the user’s head.Rotational motion is a common cause of concussions in oblique hits to the head. In a crash, the Mips system is designed to move slightly inside the helmet to help redirect forces away from the head.Roc Loc® Air Fit System: This revolutionary fit system adds a new dimension to helmet performance by enhancing cooling, as well as fit comfort and stability. Using a patented design that suspends the helmet just slightly off the top of the skull, Roc Loc® Air allows cool airflow to pass directly over your head, further enhancing the performance of vents and internal channelling that exhaust heat out of the helmet. Fit and feel adjustments mimic the Roc Loc® 5, allowing you to easily custom tune fit tension and fore-aft tilt of the helmet in seconds using a single hand.Super Fit™ Engineering: Giro's proprietary Super Fit™ sizing system is based on “human scale factors” data and over 25 years of handcrafting helmets. By creating helmet moulds in up to 4 adult sizes to match the human body’s form, their Super Fit™ sizes comfortably and securely fit riders and feel like they are custom made just for you.Buy Giro Protection from Chain Reaction Cycles, the World's Largest Online Bike Store.