Impact and scratch resistant hard and durable outer shellHybrid construction - thick ABS shell, EPP foam liner and EPS foam linerSoft headband - conforms to shape of head and folds into the shell for storage and transportationDesigned in accordance with Petzl\'s Top And Side Protection label Head-covering shape, lower in the rear, offers enhanced protetionFoam liners throughout the inner shell - for comfort and stability on the headFour clips for headlamp attachment Material(s): ABS shell, expanded polypropylene (EPP) liner, expanded polystyrene (EPS) liner, polyester webbingCertification(s): CE EN 12492, UIAASize: M/LWeight: 295gHead circumference: 53-61cm