From Marmot, these pants feature: Stretch for ease of movement Marmot NanoPro® Eco is Earth-friendly waterproof and breathable protection Waterproof and seam-taped for complete leak proof protection PrimaLoft® Black Insulation ECO is lightweight and breathable, offering warmth and wind resistance Zippered hand pockets to keep things secure Water-resistant thigh pocket zipper to keep things dry Adjustable waist with snap closure and zippered fly Internal gaiters with gripper elastic that keeps snow out Internal gaiters with gripper elastic that keeps snow out Articulated knees for full range of motion NanoPro® post-consumer recycled polyester plain weave and pre-consumer recycled nylon plain-weave fabric Machine wash/tumble dry Imported.