100% Polyester Imported Regular fit is just right: Not too tight or too baggy; Gender neutral sizing Two-layer polyester dobby fabric [10,000mm/5,000g]; Offers breathability for low to medium intensity activities Elasticized cuffs; Elasticized waistband with internal drawstring cinch; Room-to-Grow system extends the length of the legs by 2in Back pockets with hook-and-loop closure and zippered hand-warmer pockets with microfleece lining for warmth and storage Products made with bluesign materials are responsibly crafted to limit the impact on the planet; Lifetime warranty