The Unisex Halley Mountain Cap has a wide range of features that set it a cut above for mountain use. Waterproof (3000mm) and breathable (300g), with a waterproof membrane insert, the cap also has extended ear flaps and a fleece lining for warmth, comfort and insulation. As though this exceptional protection from the elements wasn\'t enough, its rear adjustment and chin strap will keep the cap firmly and comfortably in place at all times, making for a cap that can withstand whatever your trip demands of it.  • Outer: 100% polyamide lining: 100% polyester • 3,000mm waterproof and 3,000g breathable • Waterproof membrane insert • Robust nylon outer • Fleece lined • Wired peak • Extended ear flaps • Rear adjustment • Chin strap • Press stud peak