Protection Lightweight in-mold construction MIPS® Brain Protection System reduces rotational forces caused by angled impacts to the head Fit / Integration VaporFit™ dial adjustment system offers 270-degree fit adjustment with the turn of a dial Designed for ultimate integration with Smith performance eyewear for maximum comfort, venting and storage convenience AirEvac™ ventilation system integrates with Smith goggles and eyewear for fog-free lenses Features 21 fixed vents for consistent airflow Performance comfort lining Lightweight, low-bulk single layer webbing Weight: (Size XS, MIPS®): 8 oz / 240g