Giro Crue MIPS Kids Snow Helmet Construction - hard shell construction, MIPS Fit system - Auto Loc 2 Fit System - removable, on-the-fly vertical tuning Ventilation - super cool vents, stack ventilation Compliance - CE EN1077 Features - removable goggle retainer, removable ear pads, compatible with aftermarket Giro audio systems, seamless compatibility with Giro youth goggles (Rev & Chico)