Black Diamond Vision Helmet - MIPS Features: MIPS Technology for added protection against the rotational motion transmitted to the brain from angled impacts to the head EPP + EPS + ABS shell combo creates most durable foam helmet in Black Diamond line-up Low-profile suspension system Integrated headlamp clips Removable / reverse Velcro pads Display Weight [S/M] 240 g (8.4 oz) [M/L] 250 g (8.8 oz) Size Range [S/M] 53-59 cm (21-23 in) [M/L] 58-63 cm (23-25 in) Vision Helmet - MIPS