Final SALE: For safety reasons, we cannot accept returns on load-bearing Climbing equipment. Sorry for being so mean. Features of the Mammut Skywalker 2 Helmet Robust plastic Hard Shell Upgraded, robust EPS inner shell Thumb wheel for effective and quick adjustment to head size 8 openings ensure good ventilation Headlamp clips integrated into design All-round, fully adjustable chin strap for optimum Fit Fabric Details Weight: 380 g