Typhoon Youth Girl's Dirt Bike Motocross ATV Helmet Gloves Goggles Chest Protector Combo Pink (Medium) Helmet, gloves, goggles, and adjustable YOUTH chest protector included Helmet is certified to meet the DOT standard (FMVSS 218) Youth chest protectors are generally recommended for ages 8-14 or 75-100 lbs Please measure for helmet size. Each manufacturers sizing is different. SIZE CHART (Circumference of the largest part of the child's head, usually just above the eyebrows) in inches: Youth Small: 18  to 19 , Youth Medium: 19  to 20 , Youth Large: 20  to 21 , Youth XL: 21  to 22 . Head shapes can affect how a helmet fits. The size chart is meant to be a starting point. For adult and peewee combos, see our other items