Used for 2 summers. Helmet is still in great condition, hardly any wear. Some small cosmetic marks on exterior from son falling off his bike. Great protection when riding bicycle. - Recommended for ages 5–8 (Fits heads 50-54cm) - features 9 cooling vents and an easy-to-adjust side-squeeze buckle - ASTM and CPSC Safety Certified for Bicycling, Skateboarding and Roller Skating - Shock absorbing inner shell