Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older.Key features:Camber earned the highest 5-Star Virginia Tech® Helmet Ratingfrom internationally renowned Virginia Polytechnic Institute and State University.The MIPS system is a low-friction layer that allows a sliding motion of 10 to 15mm in all directions. Studies indicate that this reduces some of the rotational forces transmitted to the brain during angled impacts.With x-small to x-large options spread across five unique shell sizes, the Camber eliminates excess bulk to deliver a comfortable and streamlined fit to a full range of riders.Easily-adjustable, one-size Headset SX fit system with adjustable Tri-Fix web splitters delivers an easy and accurate fit.4th Dimension Cooling System optimizes ventilation.In-molded shell improves strength and reduces weight.This helmet is ANGi ready, with a fit system mount designed for easy integration with our ANGi crash sensor.Average weight: 370 grams (med