We can officially only rate these warmers at UPF 50+, but in our laboratory tests they actually blocked 99.8 percent of damaging UV rays. We used a polyester base that is not only more effective than nylon at blocking UV rays but is also much better at keeping you dry, which means these skins are better in both cooler and warmer conditions. We’ve kept the construction very clean to eliminate seams that can rub, and we used our double-sided silicone elastic to make sure they stay in place. They fold up extremely small, so they’re great to stick in your pockets for your next big mountain day.Solare fabric keeps the chill off without causing overheating,UPF 50+ protection,Polyester based for excellent moisture management,Double-side silicone elastic at top for excellent grip.
Polyester stretch fabric on front for great wicking,Stretch mesh back.
The Castelli Thermoflex 2 Knee Warmers are perfect if you’re don’t need wet weather protection and are looking for an incredibly soft and insulating warmer that uses luxurious fabric to keep you protected in cooler climes.On the inside of the Thermoflex 2 fabric, a super soft finish and the optimal loft have been achieved through Castelli’s meticulous research and development. The fabric feels phenomenally comfortable against the skin and the loft traps just the right amount of air above the skin to keep your heat regulated over a wide range of autumn and winter conditions.The discreet black embossed Castelli wordmark logos on these warmers is a nice touch and means that they can be worn with a wide range of jerseys. The dual-sided silicone gripper on the upper edge keeps the warmers securely in place whilst the single-seam construction and flatlock stitching contribute to a low-profile look and feel.Key Features:Thermoflex 2 fabric for exceptional warmth and softness,Minimal seam construction for aesthetic versatility and freedom of movement,Easily packable into a pocket,Highly breathable but also insulating,Optimal temperature range is 12°C – 20°C.
The Castelli Pro Seamless Knee Warmer was developed in collaboration the INEOS Grenadiers with the aim to create a better seamless warmer for those in-between weather days.Damp kit is often uncomfortable and can hinder your performance. Many seamless warmers use a nylon/Lycra blend that tends to hold moisture, but Castelli resolved this issue by introducing polyester into the unique fabric used for the Pro Seamless Knee Warmer.Due to their breathability, and being extremely warm for their weight, the knee warmers have proven a pro rider favourite. When the warmers are on their high stretch means you hardly feel them, and when you take them off, they occupy a fraction of the space that normal warmers would take up in your pockets.Key Features: Mid weight seamless arm warmer developed with the INEOS Grenadiers,Warm without causing overheating,Unique polyester, nylon, Lycra blend (78%, 15%, 7%),Folds up extra small,Temperature comfort range of 10° – 20°C,Weight 52g (Pair).
The Castelli Pro Seamless Leg Warmer was developed in collaboration with the INEOS Grenadiers with the aim to create a better seamless warmer for those in-between weather days.Damp kit is often uncomfortable and can hinder your performance. Many seamless warmers use a nylon/Lycra blend that tends to hold moisture, but Castelli resolved this issue by introducing polyester into the unique fabric used for the Pro Seamless Leg Warmer.Due to their breathability, and being extremely warm for their weight, the leg warmers have proven a pro rider favourite. When the warmers are on their high stretch means you hardly feel them, and when you take them off, they occupy a fraction of the space that normal warmers would take up in your pockets. Key Features: Mid weight seamless warmer developed with the INEOS Grenadiers,Warm without causing overheating,Unique polyester, nylon, Lycra blend (78%, 15%, 7%),Folds up extra small,Temperature comfort range of 10° – 20°C,Weight 74g (Pair).
Key Features:Thermoflex 2 fabric for exceptional warmth and softness,Minimal seam construction for aesthetic versatility and freedom of movement,Easily packable into a pocket,Highly breathable but also insulating,Optimal temperature range is 8°c – 20°c.
The Castelli Nano Flex 3G Leg Warmers are a stalwart of your winter cycling kit – rain repellent, windproof, warming and luxuriously comfortable, this latest evolution of the Nano Flex technology is Castelli’s best yet.The Nano Flex 3G fabric used across these leg warmers utilises a combination of newly updated durable water repellent (DWR) treatment and mechanical heat treatment to give previously unheard-of levels of rain protection. Light rain beads off the fabric, keeping you dry when those inevitable rainy spells descend.On the inside of the Nano Flex 3G fabric, a super soft finish and the optimal loft have been achieved through Castelli’s meticulous research and development. The fabric feels phenomenally comfortable against the skin and the loft traps just the right amount of air above the skin to keep your heat regulated over a wide range of autumn and winter conditions.This latest update to the Nano Flex fabric not only reflects Castelli’s ongoing commitment to offering you the very best garment quality but crucially means more time enjoying yourself on the bike.The flat-lock stitching and single-seam construction keep the profile of the warmers low and the stretch is optimised for maximal freedom of movement. A dual-sided silicone gripper at the upper end secures the warmers in place. The compact size of the warmers makes them easy to stuff into rear pockets when conditions lighten up.Key Features:Newly updated Nano Flex 3G fabric for exceptional warmth, softness and protection from the rain,Minimal seam construction for aesthetic versatility and freedom of movement,Easily packable into a pocket,Highly breathable,Optimal temperature range is 8°C – 18°C.
The Castelli Nano Flex 3G Knee Warmers are a stalwart of your winter cycling kit – rain repellent, windproof, warming and luxuriously comfortable, this latest evolution of the Nano Flex technology is Castelli’s best yet.The Nano Flex 3G fabric used across these knee warmers utilises a combination of newly updated durable water repellent (DWR) treatment and mechanical heat treatment to give previously unheard-of levels of rain protection. Light rain beads off the fabric, keeping you dry when those inevitable rainy spells descend.On the inside of the Nano Flex 3G fabric, a super soft finish and the optimal loft have been achieved through Castelli’s meticulous research and development. The fabric feels phenomenally comfortable against the skin and the loft traps just the right amount of air above the skin to keep your heat regulated over a wide range of autumn and winter conditions.This latest update to the Nano Flex fabric not only reflects Castelli’s ongoing commitment to offering you the very best garment quality but crucially means more time enjoying yourself on the bike.The flat-lock stitching and single-seam construction keep the profile of the warmers low and the stretch is optimised for maximal freedom of movement. A dual-sided silicone gripper at the upper end secures the warmers in place. The compact size of the warmers makes them easy to stuff into rear pockets when conditions lighten up.Key Features:Newly updated Nano Flex 3G fabric for exceptional warmth, softness and protection from the rain,Minimal seam construction for aesthetic versatility and freedom of movement,Easily packable into a pocket,Highly breathable,Optimal temperature range is 12°C – 20°C.
The Castelli Merino Long Sleeve T-Shirt is designed to be worn as a technical base layer or a casual top.The fine-gauge merino wool knit incorporates polyester for strength and ease of care, but retains the naturally odourless, warming and high wicking properties of merino for a luxurious feel whether you’re wearing it under a cycling jacket or recovering post-ride. Key Features: Designed for casual use or as a performance base layer,Fine-gauge merino wool knit with polyester for strength and ease of care,Shaped collar,Button logo and woven label,Slim fit,.
The Castelli Pro Seamless Arm Warmers were developed in collaboration with World Tour riders with the aim of creating a better warmer design for those in-between weather days.Damp kit is often uncomfortable, can hinder your performance and adds unnecessary weight. Many warmers use a nylon/Lycra blend that tends to hold moisture, but Castelli resolved this issue by introducing polyester into the unique fabric used for the Pro Seamless Warmer range.It took Castelli a year longer than expected to perfect the material composition, but their breathability, excellent warmth-to-weight ratio and comfort have quickly made them a pro rider favourite. When the warmers are on, the high stretch fabric means you hardly feel them and when you take them off, they occupy a fraction of the space that normal warmers would take up in your pockets.Key FeaturesMid-weight seamless warmer developed with World Tour team riders,Warm without causing overheating,Unique polyester, nylon, Lycra blend (78%, 15%, 7%),Folds up extra small,Temperature comfort range of 10°C – 20°C,Weight 64g (Pair - approx).
The Castelli Nano Flex 3G Arm Warmers are a stalwart of your winter cycling kit – rain repellent, windproof, warming and luxuriously comfortable, this latest evolution of the Nano Flex technology is Castelli’s best yet.The Nano Flex 3G fabric used across these arm warmers utilises a combination of newly updated durable water repellent (DWR) treatment and mechanical heat treatment to give previously unheard-of levels of rain protection. Light rain beads off the fabric, keeping you dry when those inevitable rainy spells descend.On the inside of the Nano Flex 3G fabric, a super soft finish and the optimal loft have been achieved through Castelli’s meticulous research and development. The fabric feels phenomenally comfortable against the skin and the loft traps just the right amount of air above the skin to keep your heat regulated over a wide range of autumn and winter conditions.This latest update to the Nano Flex fabric not only reflects Castelli’s ongoing commitment to offering you the very best garment quality but crucially means more time enjoying yourself on the bike.The flat-lock stitching and single-seam construction keep the profile of the warmers low and the stretch is optimised for maximal freedom of movement. A dual-sided silicone gripper at the upper end secures the warmers in place. The compact size of the warmers makes them easy to stuff into rear pockets when conditions lighten up.Key Features:Newly updated Nano Flex 3G fabric for exceptional warmth, softness and protection from the rain,Minimal seam construction for aesthetic versatility and freedom of movement,Easily packable into a pocket,Highly breathable,Optimal temperature range is 8°C – 20°C.
The Castelli Thermoflex 2 Leg Warmers are perfect if you’re don’t need wet weather protection and are looking for an incredibly soft and insulating warmer that uses luxurious fabric to keep you protected in cooler climes. On the inside of the Thermoflex 2 fabric, a super soft finish and the optimal loft have been achieved through Castelli’s meticulous research and development. The fabric feels phenomenally comfortable against the skin and the loft traps just the right amount of air above the skin to keep your heat regulated over a wide range of autumn and winter conditions. The discreet black embossed Castelli wordmark logos on these warmers is a nice touch and means that they can be worn with a wide range of jerseys. The dual-sided silicone gripper on the upper edge keeps the warmers securely in place whilst the single-seam construction and flatlock stitching contribute to a low-profile look and feel. Key Features: Thermoflex 2 fabric for exceptional warmth and softness, Minimal seam construction for aesthetic versatility and freedom of movement, Easily packable into a pocket, Highly breathable but also insulating, Optimal temperature range is 8°C – 18°C..