Protection Lightweight in-mold construction MIPS® Brain Protection System reduces rotational forces caused by angled impacts to the head Fit / Integration Adjustable dial fit system for a customized fit Designed for ultimate integration with Smith performance eyewear and goggles for maximum comfort,venting and storage convenience AirEvac™ ventilation system integrates with Smith goggles and eyewear for fog-free lenses Features 20 fixed vents for consistent airflow Integrated visor Performance comfort lining Lightweight, low-bulk single layer webbing Weight: (Size XS, MIPS®):10oz / 270g