Hafjell Alpine Helmet from Gridarmor is a lightweight ski helmet with 15 ventilation holes that keep your head cool during high-intensity days on the ski slope. The ventilation holes can be opened and closed as the temperature and speed change. The helmet is constructed in an in-mold shell with a quick release buckle and removable lining to be able to wash it.\n\n15 closable ventilation holesIn-mold constructionWashable liningQuick release buckleSHead circumference: 55-58 cmMHead circumference: 59-61 cm Gridarmor Unisex Hafjell Alpine Helmet Black | Buy Gridarmor Unisex Hafjell Alpine Helmet Black here | Outnorth