The Engage features the secure custom fit of Smith’s VaporFit™ system while the AirEvac™ channels promote airflow to prevent fogging of your eyewear. The Engage also features channels on the front of the helmet for eyewear storage, and a three-position visor that rotates high to allow for goggle storage. Protection Lightweight in-mold construction MIPS® Brain Protection System reduces rotational forces caused by angled impacts to the head CPSC and CE EN 1078 certified Fit / Integration Designed for ultimate integration with Smith performance eyewear for maximum comfort, venting and storage convenience AirEvac™ ventilation system integrates with Smith eyewear for fog-free lenses VaporFit™ dial adjustment system offers 270-degree fit adjustment with the turn of a dial Features 20 fixed vents for consistent airflow Sweat-wicking liner insulates and fights odors Lightweight, low-bulk single layer webbing Two position adjustable visor Weight (Size M, MIPS®): 12 oz / 350 g Size Head Circumference XS 48-52cm S 51-55cm M 55-59cm L 59-62cm XL 61-65cm