BEST GIFT for KIDS 3-5: This S size kids bike helmet is suitable for children and toddlers with helmet size 48-52cm/18.9"-20.5". Designed for head protection, this helmet features the sturdy PC shell and shocking-absorb EPS inner foam for comfort and durability. Complies with the U.S. CPSC and ASTM Safety Standards for Bicycle Helmets for Persons Age 3 and Older. COOL AND COMFORTABLE: Our lightweight toddler helmet features 12 special vents and breathable foam to provide cool air circulation and keep kids comfortable even in the middle of summer! PERFECT FIT: With durable adjustment dials and skin-friendly adjustable straps, this kids helmet fits perfectly on the child's head to provide optimal wearing comfort, so as to better protect your kid. SUITABLE FOR MULTIPLE SPORTS: More than cycling and biking, it can also fully protect your children when skiing, snowboarding, skating, skateboarding, inline skating, scootering and rollerblading, allowing them to enjoy the fun of the sports safely. BUY WITH CONFIDENCE: This is a ideal choice for Children's Day, Christmas, Birthday and other holiday gifts for boys and girls. We will provide perfect customer service for 100% satisfaction. This small-sized DRBIKE cute and bright helmet is a perfect first bike helmet for kids ages 3-5 years. It features a PC shell and a high-density EPS foam liner with 12 special vents and breathable foam to keep kids comfortable even in summer. Adjustment dials and straps enable it to fit perfectly on your kid's head, offering the optimal wearing experience. Whether cycling, biking, skiing, snowboarding, skating, skateboarding, inline skating, scootering or rollerblading, your child's adventures are fully secured!