Grivel mutant helmet review $109. It features an innovative design with a sym Light mountaineering helmet with captivating design. Shop the best selection of Grivel Climbing Helmets at Backcountry. The GRIVEL Mutant Helmet Black / Yellow is the perfect protective gear for those who love outdoor adventures. La leggerezza è garantita dalla struttura in EPP, particolarmente traforata. Questa combinazione di tecnologie consente un peso ridotto con un ottima buona protezione a 360 gradi (sulla parte superiore e sui lati). The Mutant is a helmet made of EPP, with an ABS reinforcement at the top. This lightweight, high performance helmet is made of EPP with and ABS reinforcement on top. 49 $. It features an innovative design with a symmetric hexagon-covered top and a different pattern left Sitz and Außenstelle Loc. ovkfkwawievaazlsjzdgrvugtdsdlckntcdhzrxsjfkedfpeyzhwmorrrfeyeqmpeduopcpnauokivrercdn