Made with a Marmot's Membrain 2- layer fabric, the Slopestar Insulated Pants are waterproof and breathable for comfort all day at the resort. PrimaLoft Black Eco adds a little extra warmth to keep us going on those chilly mornings, and integrated snow gaiters at the cuffs keep the snow out of our pants and boots. The adjustable waist help us get the perfect fit, and zippered leg vents allow us to release excess heat when we're working up a sweat.