The Mutant Helmet is a cutting-edge choice for light mountaineering, combining innovative design with top-notch protection. Crafted from EPP with an ABS-reinforced top, this helmet offers excellent all-around safety while remaining lightweight. Its unique design features a symmetric hexagon pattern and distinct left-right aesthetics. The helmet includes efficient ventilation and a minimal adjustment system for easy storage and a snug fit. Available in two sizes, it accommodates head sizes from 48 to 62 cm, making it a versatile and stylish choice for all your climbing and hiking adventures.Grivel Mutant Features: Activities: climbing and mountaineering Materials/ construction/ technologies: EPP, ABS, webbing Certifications: CE EN 12492, UIAA 106 Weight: 160g (S/M), 185g (L/XL) Sizes: S/M (48-58); L/XL (54-62)