Craft Sportswear Men's Cross Over Windproof and Waterproof Bike Cycling and Training Pants: protective/riding/compression/cooling 100% Polyester Imported Ergonomic design for a perfect riding-position fit Craft is the official apparel and footwear sponsor of Spartan Race 3-layer wind- and waterproof panels Partly brushed backside for extra warmth and comfort 1-layer thermal fabric at back of the knee for ventilation and freedom of movement 4-way elasticity for optimal freedom of movement