If there's one failing to the majority of legwarmers, it's that they absorb water like a proverbial sponge. On rainy days, they end up waterlogged and offering jeopardized heat. However, the Castelli Nanoflex Leg Warmers are best for riding in conditions that are both cold and wet. Then again, outside of Mojave heat levels, we can't consider any condition that will not gain from Nanoflex. Nanoflex is an exclusive Castelli material. The mill starts with Castelli's super-warm and ultra-stretchy Thermoflex material (utilized in numerous of its winter pieces) getting an exterior layer of ultra-tiny nanofilaments of silicone fiber. These fibers produce a near waterproof barrier to wetness, and raindrops run off the material without soaking through. Despite its water-resistant finish, Nanoflex material remains extremely breathable, keeping you comfy in virtually any condition. Silicone leg grippers keep the Nanoflex legwarmers in place on the hardest of trips, and ankle zips make them simple to obtain past the biggest feet. And last but not least, reflective logo designs are printed at the knee and below the calf in order to increase your exposure to motorists in low-light conditions. The Castelli Nanoflex Leg Warmers are available in 4 sizes from Small to X-Large and in the colors Black, Red, and White.