Turn your kit into a winter-ready option with the help of Specialized's Therminal Engineered Leg Warmer. It's constructed with a special cylindrical knitting machine that allows the brainiacs over at the Big S to engineer areas of stretch, compression, and articulation, while also creating a seamless design that won't chafe or rub. The Therminal fabric offers good loft for trapping body heat and adds durability, while the knit construction promotes excellent breathability to prevent overheating The engineered design also aligns the warmer with your knee, so they'll stay put with just the right amount of compression at the cuffs.