evo.com | Sweet Protection Bike Helmets > The Sweet Protection Ripper MIPS CPSC Junior Bike Helmet is here to bring high performance to the groms! Engineered for smaller and more elastic noggins, this high volume/low density EPS helmet is equipped with a turn dial fit system as well as MIPS(R) rotational impact technology. CPSC 1203 Higher Volume & Lower Density EPS STACC Ventilation STACC is short for Superficial Temporal Artery Cooling Channel. A front vent, an internal channel, and an exhaust vent cool down the temporal artery without exposing your temples which are the most vulnerable area of the head. Patent Pending. MIPS(R) The MIPS Brain Protection System helmet-integrated low-friction layer is designed to reduce rotational motion transferred to the brain from angled impacts to the head. One Size (with Large Adjustment Possibilities) | Kid's Sweet Protection Ripper MIPS CPSC Junior Bike Helmet 2026 - 48/53 in Blue