The Half Dome is a popular climbing helmet known and used by climbers worldwide. Black Diamond of redesigned the Half Dome to give it a new lower profile suspension system which is sleek, light and strong. The new system features a one-handed dial combined with streamlined headlamp clips to maximise comfort whilst keeping the design simple. The updated chin strap is easier to adjust for comfort, speed and safety on the rock.FeaturesSleek, light and secure climbing helmetEPS impact foam and durable ABS shellUpdated, low-profile suspension systemStreamlined, lightweight headlamp clipsOne-handed fit adjustment dialEasily adjustable chin strapAvailable in two sizesSize:S/M: 50-58cm (19.7-23in) | Weight: 330gM/L: 56-63cm (22-25in) | Weight: 350g