Durable and comfortable technical tights to keep you warm on outdoor adventures. 88% Recycled Polyester, 12% Elastane Cold weather is no match for these extra-warm technical tights. These tights have the stretch and durability you need for high-output activities, including mountain hikes and trail running. With a winterweight 88% recycled polyester and a super-soft and cozy interior, they’re comfortable and warm. We added a back pocket with fastener so you can stow small gear.