2XU Women's Thermal Long Sleeve Performance Compression Top 80% Nylon / 20% Sport Lycra Graduated Compression with 2XU's Powerful 70D Thermal compression promotes circulation in the extremities. Say goodbye to cold hands and hello to less fatigue while outdoors in cold weather Great for Skiing, Snowboarding, Training, Competing, and all Cold Weather Sports and Activities Machine washable, line dry, no bleach China