Leatt MTB All Mtn 1. 0 V23 Helmet Ride anywhere The Leatt MTB All Mtn 1. 0 Helmet provides deep coverage for more technical terrain, without weighing you down. The All Mtn 1. 0 is the entry point into Leatt's all-mountain helmet lineup, with much of the technology found in its more advanced siblings. Overall safety is enhanced by their 360deg Turbine Technology, which consists of energy-absorbing discs and reduces concussive forces by up to 30%, and rotational forces by up to 40%. With 14 vents and Maxiflow air channeling, the All Mtn 1. 0 provides generous airflow for hot conditions, with a moisture-wicking inner liner to keep you comfortable. The All Mtn 1. 0 equals serious protection. Features In-molded impact foam core absorbs energy from impacts Leatt's 360deg Turbine Technology reduces forces from both rotational and linear impacts Fidlock magnetic closure for simple to use, reliable retention14 vents with Maxiflow channeling for airflow at any speed Moisture-wicking liner keeps you dry in hot conditions Adjustable breakaway visor for adjustable coverage without sacrificing safety Specifications Core Material In-molded impact foam Safety Certifications AS/NZS 2063:2008, EN1078, CPSC 1203Intended Use All Mountain, Trail Weight320 grams Sizing Size Small Medium Large Head circumference (cm)51 - 55cm55 - 59cm59 - 63cm | Leatt | Mtb All Mtn 1. 0 V23 Helmet Men's | Size Extra Small In Camo