Sidi Women's T-5 Air Triathlon ShoesPush your triathlon performance to new heights with the help of the Sidi Women's T-5 Air Triathlon Shoes. The stiff sole makes for super-efficient power transfer, while wide opening and straps make for super-rapid transitions. A great Triathlon specific cycling shoe must be quick to get into and deliver comfort and outstanding pedalling efficiency for both short course events right through to Ironman biking distances. The Women's T-5 Air Triathlon Shoes deliver exactly that. Immediate comfort comes by the way of the advanced and eco-friendly upper material - 'Politex'. This material gives you a supple and comfortable fit and, thanks to its unique construction, is highly resistant to ripping, abrasions, stretching and fading. It's the perfect choice to keep the shoes in perfect condition for all your training and triathlon racing needs.For lightning-quick transitions, the Women's T-5s feature a wide foot opening that's quickly adjusted to your preference via the dual strap system. The heel loop makes it impressively easy to get your foot in place too, even on the go, letting you get a jump on your competitors. With the Sidi heel cup, you'll also enjoy a solid and stable pedalling platform with your foot held in just the right position even during longer events.12 Carbon Composite SoleOnce you're on the bike, the 12 Carbon Composite Sole provides instantaneous power transfer, getting you up to speed with optimal efficiency. The blend of nylon and carbon fibre gives a sole that is both rigid and lightweight letting you maintain your speed without power loss. The carbon fibres also ensure the stiffness rating won't degrade over time or be affected by heat or humidity. A performance sole unit engineered to last and last.Cleat GuidanceThese Tri Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitDual-strap adjustment12 Carbon Composite soleSidi Heel CupReplaceable heel padPull tab on heelUpper: Politex eco-friendly3-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Trace 2 MTB ShoesTough, comfortable and imparting outstanding pedalling efficiency, the Sidi Trace 2 MTB Shoes will keep you ahead of the pack as you dart into cross-country singletrack, first into the dirt at a cyclocross race or enjoying the trails on an all-day mountain biking epic.The Trace 2 MTB Shoes are an excellent introduction to Sidi's world of high-performance, comfortable and durable mountain bike shoes. They boast a supple but tough upper made from a material called 'Politex'. This material gives the shoe a snug and comfortable fit while resisting rips, abrasions, stretching and fading - exactly ehat you need for the rough and tumble of off-road riding. They're an MTB shoe you'll enjoy wearing season after season after season.Comfort is also optimised thanks to the easy adjustment of the fit. This adjustment is via Soft Instep Closure 3 system and dual strap closures. A wide EVA thermo-formed padded strap wraps across the top of the foot and is adjustable on both inner and outer sides for a perfect fit every time you ride. The two lower straps then give easy adjustment of pressure, even on the go. RS17 MTB SoleThe RS17 MTB Sole gives a stiff and stable pedalling platform through which you'll enjoy smooth and effortless power transfer as you speed along the trail. A dialled in amount of flex also make them comfortable over rougher terrain while also making walking easy too. If you are off the bike then the MTB specific tread provides sure-footed traction even on the muddiest of ground. Toe studs can also be added to boost grip and the replaceable toe tread gives the shoes increased lifespan.Cleat GuidanceThese shoes are compatible with MTB pedal systems, which use the 2-bolt cleat standard (SPD standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 3Tecno 3 dial adjusterDual-strap lower adjustmentRS17 MTB SoleSidi Heel CupReplaceable toe padUpper: Politex eco-friendly2-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Trace 2 MTB ShoesTough, comfortable and imparting outstanding pedalling efficiency, the Sidi Trace 2 MTB Shoes will keep you ahead of the pack as you dart into cross-country singletrack, first into the dirt at a cyclocross race or enjoying the trails on an all-day mountain biking epic.The Trace 2 MTB Shoes are an excellent introduction to Sidi's world of high-performance, comfortable and durable mountain bike shoes. They boast a supple but tough upper made from a material called 'Politex'. This material gives the shoe a snug and comfortable fit while resisting rips, abrasions, stretching and fading - exactly ehat you need for the rough and tumble of off-road riding. They're an MTB shoe you'll enjoy wearing season after season after season.Comfort is also optimised thanks to the easy adjustment of the fit. This adjustment is via Soft Instep Closure 3 system and dual strap closures. A wide EVA thermo-formed padded strap wraps across the top of the foot and is adjustable on both inner and outer sides for a perfect fit every time you ride. The two lower straps then give easy adjustment of pressure, even on the go. RS17 MTB SoleThe RS17 MTB Sole gives a stiff and stable pedalling platform through which you'll enjoy smooth and effortless power transfer as you speed along the trail. A dialled in amount of flex also make them comfortable over rougher terrain while also making walking easy too. If you are off the bike then the MTB specific tread provides sure-footed traction even on the muddiest of ground. Toe studs can also be added to boost grip and the replaceable toe tread gives the shoes increased lifespan.Cleat GuidanceThese shoes are compatible with MTB pedal systems, which use the 2-bolt cleat standard (SPD standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 3Tecno 3 dial adjusterDual-strap lower adjustmentRS17 MTB SoleSidi Heel CupReplaceable toe padUpper: Politex eco-friendly2-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Trace 2 MTB ShoesTough, comfortable and imparting outstanding pedalling efficiency, the Sidi Trace 2 MTB Shoes will keep you ahead of the pack as you dart into cross-country singletrack, first into the dirt at a cyclocross race or enjoying the trails on an all-day mountain biking epic.The Trace 2 MTB Shoes are an excellent introduction to Sidi's world of high-performance, comfortable and durable mountain bike shoes. They boast a supple but tough upper made from a material called 'Politex'. This material gives the shoe a snug and comfortable fit while resisting rips, abrasions, stretching and fading - exactly ehat you need for the rough and tumble of off-road riding. They're an MTB shoe you'll enjoy wearing season after season after season.Comfort is also optimised thanks to the easy adjustment of the fit. This adjustment is via Soft Instep Closure 3 system and dual strap closures. A wide EVA thermo-formed padded strap wraps across the top of the foot and is adjustable on both inner and outer sides for a perfect fit every time you ride. The two lower straps then give easy adjustment of pressure, even on the go. RS17 MTB SoleThe RS17 MTB Sole gives a stiff and stable pedalling platform through which you'll enjoy smooth and effortless power transfer as you speed along the trail. A dialled in amount of flex also make them comfortable over rougher terrain while also making walking easy too. If you are off the bike then the MTB specific tread provides sure-footed traction even on the muddiest of ground. Toe studs can also be added to boost grip and the replaceable toe tread gives the shoes increased lifespan.Cleat GuidanceThese shoes are compatible with MTB pedal systems, which use the 2-bolt cleat standard (SPD standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 3Tecno 3 dial adjusterDual-strap lower adjustmentRS17 MTB SoleSidi Heel CupReplaceable toe padUpper: Politex eco-friendly2-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Trace 2 MTB ShoesTough, comfortable and imparting outstanding pedalling efficiency, the Sidi Trace 2 MTB Shoes will keep you ahead of the pack as you dart into cross-country singletrack, first into the dirt at a cyclocross race or enjoying the trails on an all-day mountain biking epic.The Trace 2 MTB Shoes are an excellent introduction to Sidi's world of high-performance, comfortable and durable mountain bike shoes. They boast a supple but tough upper made from a material called 'Politex'. This material gives the shoe a snug and comfortable fit while resisting rips, abrasions, stretching and fading - exactly ehat you need for the rough and tumble of off-road riding. They're an MTB shoe you'll enjoy wearing season after season after season.Comfort is also optimised thanks to the easy adjustment of the fit. This adjustment is via Soft Instep Closure 3 system and dual strap closures. A wide EVA thermo-formed padded strap wraps across the top of the foot and is adjustable on both inner and outer sides for a perfect fit every time you ride. The two lower straps then give easy adjustment of pressure, even on the go. RS17 MTB SoleThe RS17 MTB Sole gives a stiff and stable pedalling platform through which you'll enjoy smooth and effortless power transfer as you speed along the trail. A dialled in amount of flex also make them comfortable over rougher terrain while also making walking easy too. If you are off the bike then the MTB specific tread provides sure-footed traction even on the muddiest of ground. Toe studs can also be added to boost grip and the replaceable toe tread gives the shoes increased lifespan.Cleat GuidanceThese shoes are compatible with MTB pedal systems, which use the 2-bolt cleat standard (SPD standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 3Tecno 3 dial adjusterDual-strap lower adjustmentRS17 MTB SoleSidi Heel CupReplaceable toe padUpper: Politex eco-friendly2-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Trace 2 MTB ShoesTough, comfortable and imparting outstanding pedalling efficiency, the Sidi Trace 2 MTB Shoes will keep you ahead of the pack as you dart into cross-country singletrack, first into the dirt at a cyclocross race or enjoying the trails on an all-day mountain biking epic.The Trace 2 MTB Shoes are an excellent introduction to Sidi's world of high-performance, comfortable and durable mountain bike shoes. They boast a supple but tough upper made from a material called 'Politex'. This material gives the shoe a snug and comfortable fit while resisting rips, abrasions, stretching and fading - exactly ehat you need for the rough and tumble of off-road riding. They're an MTB shoe you'll enjoy wearing season after season after season.Comfort is also optimised thanks to the easy adjustment of the fit. This adjustment is via Soft Instep Closure 3 system and dual strap closures. A wide EVA thermo-formed padded strap wraps across the top of the foot and is adjustable on both inner and outer sides for a perfect fit every time you ride. The two lower straps then give easy adjustment of pressure, even on the go. RS17 MTB SoleThe RS17 MTB Sole gives a stiff and stable pedalling platform through which you'll enjoy smooth and effortless power transfer as you speed along the trail. A dialled in amount of flex also make them comfortable over rougher terrain while also making walking easy too. If you are off the bike then the MTB specific tread provides sure-footed traction even on the muddiest of ground. Toe studs can also be added to boost grip and the replaceable toe tread gives the shoes increased lifespan.Cleat GuidanceThese shoes are compatible with MTB pedal systems, which use the 2-bolt cleat standard (SPD standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 3Tecno 3 dial adjusterDual-strap lower adjustmentRS17 MTB SoleSidi Heel CupReplaceable toe padUpper: Politex eco-friendly2-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Genius 10 Road ShoesBring the brilliance of Sidi to your bike rides with the Genius 10 Road Shoes. From committed bike racer to keen club rider to speedy sportive rider, they give you all the comfort and immediate power transfer you could ever need. The Genius 10 Road Shoes don't cut corners when it comes to getting power to the pedals with brutal efficiency, made possible via the carbon composite sole unit. And not just that, they're incredibly comfortable too with a sleek upper and precise fit.A snug fit is provided by the technical MicroTech upper. This advanced material is flexible to provide a moulded fit for instant comfort from the box while also being remarkably tough. It's ideal to withstand the rigours of daily training of the aspiring racer and keen sportive rider. It's also water repellent, brushing off road spray and damp riding conditions if the weather turns against you. It is also eco-friendly. Meanwhile, to the heel, the reinforced heel cup gives a secure fit for optimal stability when you're driving power through your pedals. This supple upper is closed via the Soft Instep Closure 4 system and Techno 3 dial systems. A wide EVA thermo-formed padded strap spreads pressure evenly across the upper foot, and with adjustment both side, a firm and comfortable fit are easy to tune in. To the midfoot the second Techno 3 dial takes care of securing your foot perfectly in place for outstanding comfort with no fuss. Carbon Composite 20 SoleBalancing stiffness for pedalling efficiency and dialled flex for long-ride comfort, the Carbon Composite 20 Sole is ideal for the aspiring racer and speedy sportive and Gran Fondo rider. Nylon is injected with carbon fibre to ensure rigidity while weight is kept to a minimum. The carbon fibres also ensure there's no degradation to the stiffness rating over time - these high-performance road shoes are built to last. That long-term durability is also evident in the replaceable heel-cup - once it's worn out it's simple to replace, thus prolonging your shoe's lifespan.Cleat GuidanceThese Road Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 4Tecno 3 dial adjustersCarbon Composite 20 SoleSidi Heel CupReplaceable heel padUpper: Microfibre water-repellent3-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Genius 10 Road ShoesBring the brilliance of Sidi to your bike rides with the Genius 10 Road Shoes. From committed bike racer to keen club rider to speedy sportive rider, they give you all the comfort and immediate power transfer you could ever need. The Genius 10 Road Shoes don't cut corners when it comes to getting power to the pedals with brutal efficiency, made possible via the carbon composite sole unit. And not just that, they're incredibly comfortable too with a sleek upper and precise fit.A snug fit is provided by the technical MicroTech upper. This advanced material is flexible to provide a moulded fit for instant comfort from the box while also being remarkably tough. It's ideal to withstand the rigours of daily training of the aspiring racer and keen sportive rider. It's also water repellent, brushing off road spray and damp riding conditions if the weather turns against you. It is also eco-friendly. Meanwhile, to the heel, the reinforced heel cup gives a secure fit for optimal stability when you're driving power through your pedals. This supple upper is closed via the Soft Instep Closure 4 system and Techno 3 dial systems. A wide EVA thermo-formed padded strap spreads pressure evenly across the upper foot, and with adjustment both side, a firm and comfortable fit are easy to tune in. To the midfoot the second Techno 3 dial takes care of securing your foot perfectly in place for outstanding comfort with no fuss. Carbon Composite 20 SoleBalancing stiffness for pedalling efficiency and dialled flex for long-ride comfort, the Carbon Composite 20 Sole is ideal for the aspiring racer and speedy sportive and Gran Fondo rider. Nylon is injected with carbon fibre to ensure rigidity while weight is kept to a minimum. The carbon fibres also ensure there's no degradation to the stiffness rating over time - these high-performance road shoes are built to last. That long-term durability is also evident in the replaceable heel-cup - once it's worn out it's simple to replace, thus prolonging your shoe's lifespan.Cleat GuidanceThese Road Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 4Tecno 3 dial adjustersCarbon Composite 20 SoleSidi Heel CupReplaceable heel padUpper: Microfibre water-repellent3-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Eagle 10 MTB ShoesThe Sidi Eagle 10 MTB Shoes deliver premium performance for mountain biking and off-road riding, whether that's between the tape at a race or on a big-mountain adventure. With their stiff sole unit and twin dial adjustment, comfort and direct power transfer are a given but you'll also enjoy legendary Sidi durability. A snug and comfortable fit are provided by the technical MicroTech upper. This advanced material is flexible to provide a moulded fit for instant comfort from the box while also being remarkably tough. It's also water repellent, brushing off muddy puddles and damp riding conditions if the weather turns against you. It is also eco-friendly. Meanwhile, to the heel, the reinforced heel cup gives a secure fit for optimal stability when you're driving power through your pedals. This supple upper is closed via the Soft Instep Closure 4 system and Techno 3 dial systems. A wide EVA thermo-formed padded strap spreads pressure evenly across the upper foot, and with adjustment both side, a firm and comfortable fit are easy to tune in. To the midfoot the second Techno 3 dial takes care of securing your foot perfectly in place for outstanding comfort with no fuss. RS17 MTB SoleThe RS17 MTB Sole gives a stiff and stable pedalling platform through which you'll enjoy smooth and effortless power transfer as you speed along the trail. A dialled in amount of flex also make them comfortable over rougher terrain while also making walking easy too. If you are off the bike then the MTB specific tread provides sure-footed traction even on the muddiest of ground. Toe studs can also be added to boost grip and the replaceable toe tread gives the shoes increased lifespan. Cleat GuidanceThese shoes are compatible with MTB pedal systems, which use the 2-bolt cleat standard (SPD standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 4Tecno 3 dial adjustersRS17 MTB SoleSidi Heel CupReplaceable toe padUpper: Microfibre water-repellent2-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Eagle 10 MTB ShoesThe Sidi Eagle 10 MTB Shoes deliver premium performance for mountain biking and off-road riding, whether that's between the tape at a race or on a big-mountain adventure. With their stiff sole unit and twin dial adjustment, comfort and direct power transfer are a given but you'll also enjoy legendary Sidi durability. A snug and comfortable fit are provided by the technical MicroTech upper. This advanced material is flexible to provide a moulded fit for instant comfort from the box while also being remarkably tough. It's also water repellent, brushing off muddy puddles and damp riding conditions if the weather turns against you. It is also eco-friendly. Meanwhile, to the heel, the reinforced heel cup gives a secure fit for optimal stability when you're driving power through your pedals. This supple upper is closed via the Soft Instep Closure 4 system and Techno 3 dial systems. A wide EVA thermo-formed padded strap spreads pressure evenly across the upper foot, and with adjustment both side, a firm and comfortable fit are easy to tune in. To the midfoot the second Techno 3 dial takes care of securing your foot perfectly in place for outstanding comfort with no fuss. RS17 MTB SoleThe RS17 MTB Sole gives a stiff and stable pedalling platform through which you'll enjoy smooth and effortless power transfer as you speed along the trail. A dialled in amount of flex also make them comfortable over rougher terrain while also making walking easy too. If you are off the bike then the MTB specific tread provides sure-footed traction even on the muddiest of ground. Toe studs can also be added to boost grip and the replaceable toe tread gives the shoes increased lifespan. Cleat GuidanceThese shoes are compatible with MTB pedal systems, which use the 2-bolt cleat standard (SPD standard), e.g.: Shimano SPD, Time ATAC, CrankBrothers, CrankBrothers Race, Look MTB, Xtreme MTB, Wellgo MTB, Ritchey MTB.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 4Tecno 3 dial adjustersRS17 MTB SoleSidi Heel CupReplaceable toe padUpper: Microfibre water-repellent2-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Alba 2 Mega Road ShoesThe Sidi Alba 2 Mega Road Shoes have been created to offer those of you with wider feet access to Sidi's world of brilliant pedalling performance. The 'Mega' fit is wider across the ball of the foot, with a wider heel and higher instep to ensure the very best in comfort levels when cycling.The Alba 2 Mega Road Shoes are an excellent introduction to Sidi's world of high-performance, comfortable and durable road riding shoes. They boast a supple but tough upper made from a material called 'Politex'. This material gives the shoe a snug and comfortable fit while resisting rips, abrasions, stretching and fading. They're a shoe you'll enjoy wearing season after season after season.Comfort is also optimised thanks to the easy adjustment of the fit. This adjustment is via Soft Instep Closure 3 system and dual strap closures. A wide EVA thermo-formed padded strap wraps across the top of the foot and is adjustable on both inner and outer sides for a perfect fit every time you ride. The two lower straps then give easy adjustment of pressure, even on the go. Millennium 4 Carbon Composite SoleYou've trained hard to get fit so why waste your power through a soft sole unit. Injected carbon fibre in a Nylon matrix gives the Millennium 4 Carbon Composite Sole the ideal balance of stiffness, durability and affordability. More rigid than a standard sole, it allows you to get the power to your pedals with optimal efficiency and the carbon fibres also ensure it's less susceptible to a change in performance over the lifetime of your shoes. The anti-slip toe insert and replaceable polyurethane heel pad give you sure-footed non-slip confidence at the cafe stop.Cleat GuidanceThese Road Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 3Tecno 3 dial adjusterDual-strap lower adjustmentMillennium 4 Carbon Composite soleSidi Heel CupReplaceable heel padUpper: Politex eco-friendlyMega lasts are EE o EEE width - 4 mm wider across the ball of the foot3-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.
Sidi Alba 2 Road ShoesOffering an incredible level of performance at an accessible price point, the Sidi Alba 2 Road Shoes let you take your cycling to the next level. And of course, they also benefit from Sidi's legendary level of durability. The Alba 2 Road Shoes are an excellent introduction to Sidi's world of high-performance, comfortable and durable road riding shoes. They boast a supple but tough upper made from a material called 'Politex'. This material gives the shoe a snug and comfortable fit while resisting rips, abrasions, stretching and fading. They're a shoe you'll enjoy wearing season after season after season.Comfort is also optimised thanks to the easy adjustment of the fit. This adjustment is via Soft Instep Closure 3 system and dual strap closures. A wide EVA thermo-formed padded strap wraps across the top of the foot and is adjustable on both inner and outer sides for a perfect fit every time you ride. The two lower straps then give easy adjustment of pressure, even on the go. Millennium 4 Carbon Composite SoleYou've trained hard to get fit so why waste your power through a soft sole unit. Injected carbon fibre in a Nylon matrix gives the Millennium 4 Carbon Composite Sole the ideal balance of stiffness, durability and affordability. More rigid than a standard sole, it allows you to get the power to your pedals with optimal efficiency and the carbon fibres also ensure it's less susceptible to a change in performance over the lifetime of your shoes. The anti-slip toe insert and replaceable polyurethane heel pad give you sure-footed non-slip confidence at the cafe stop.Cleat GuidanceThese Road Shoes are compatible with road bike pedal systems that use cleats with 3-bolt standards, such as: Look Delta and Keo, Shimano SPD-SL, Speedplay Light Action, Zero, X-Series (via 3-hole adapter plate), Campagnolo Pro-Fit, Mavic Zxellium, Time Iclic/Xpresso and Time Impact.Features:Please Note: Sidi recommend purchasing one whole size up from your usual fitSoft Instep Closure 3Tecno 3 dial adjusterDual-strap lower adjustmentMillennium 4 Carbon Composite soleSidi Heel CupReplaceable heel padUpper: Politex eco-friendly3-bolt cleat compatibleBuy Sidi Shoes from Chain Reaction Cycles, the World's Largest Online Bike Store.