Features: Classic MTB-style helmet designed for young riders on sidewalks, pump tracks, and trails 12 fixed vents provide consistent airflow for cooling and comfort Center rear vent compatible with the rechargeable Transit Light (sold separately) Integrated visor for added sun and debris protection Performance comfort liner for a soft, secure feel Lightweight, low-bulk single-layer webbing Technology: Mips Safety System helps reduce rotational forces from angled impacts Lightweight in-mold construction fuses shell and EPS foam for durability AirEvac ventilation system integrates with Smith eyewear to keep lenses fog-free Dial-adjustable fit system allows quick, customized sizing Designed for seamless integration with Smith goggles and eyewear SPECS: Sizes: Youth X-Small (48-52 cm, ages 4-8); Youth Small (51-55 cm, ages 8-12) Safety standards: U.S. CPSC (Age 5+), CE EN 1078, AS/NZS2063 Ventilation: 12 fixed vents Weight (Size M): 310 g Construction: In-mold shell with Mips system Visor: Integrated