Product Details + The Carhartt WIP Devin Liner is constructed from heavyweight polyester pile. Inside, the item features an onion-quilted, polyester twill lining for warmth. It is detailed with nylon taffeta front pockets and a woven military label. 100% Polyester Pile, 10 oz onion quilted polyester twill lined nylon taffeta details front closure with personalized zip military label