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.Features:Mid-weight seamless arm warmer developed with the INEOS GrenadiersWarm without causing overheatingUnique polyester, nylon, Lycra blend (78%, 15%, 7%)Folds up extra smallTemperature comfort range of 10° – 20°CWeight 52g (Pair)