Mammut Skywalker 3.0 Helmet Features: Hybrid construction with ABS hard shell, EPP & EPS foam for best protection and low profile fit Designed for excellent protection against side, front, and rear impacts Wheel adjustment system for quick and easy fitting Adjustment system folds inside to take up less space Soft padding for more comfort Additional cushioning for a perfect fit Headlamp attachment through 4 clips in the front and back Size range 53–61 cm Including a bag for for handy transport Certification: CE EN 12492   Skywalker 3.0 Helmet