Functional Design for Mountain Adventures. The MOD1 Helmet is inspired by the classic skate helmet, offering a lightweight and low-profile design perfect for all your mountain adventures. It features the BOA® 360 Fit System for a precise, adjustable fit, and integrated ventilation to keep you cool. The Fidlock® buckle allows for easy operation even with gloves on, and the removable, washable liner and ear pads provide versatility in changing weather conditions.