The Nike ACG Trailwind Storm-FIT ADV Waterproof Pants are made with 100% Nylon, an ultra-lightweight woven fabric that also blocks wind. The Black and Summit White design features a printed lining, an elastic waistband, zippered outer cuffs, and a back pocket that the pants pack into. Printed reflective branding sits on the front left leg, and a reflective Swoosh is printed under the back right waist.