【Protect Baby’s Head】Baby head protector helmet offers most ideal protection when toddlers learning to sit, walk, crawl, stand or play. It can effectively protect the baby during the collision and the friction caused by the bump and fall, which does provide a shock absorption, impact resistance and cushioning effect. 【Cotton Material】The outer layer is made of 100% cotton, the fill-in layer is a high density and elastic sponge free from smell, soft, comfortable, environment friendly, BPA free. Weighing only 0.19 pounds, it is comfortable to wear on the head and has no burden on the head and neck. 【Adjustable Size Adjustable baby infant toddler helmet suits for baby age 8-60 months and head circumference 16-22 inch. The adjustable chin strap design allows you adjust the level of tightness to fits your baby's head better, and ensures hat stay-on right place. 【Comfortable Wearing The open top of the window with fourth protection strips protect the head and facilitates heat dissipation, making it comfortable to wear even in summer. The protective cap conforms to the baby's head shape, and protects the head in 360 degrees. Using baby Velcro, scratching will not hurt your hands. 【Notes Not suit for biking. Please measure your baby's head circumference before buying. Cleaning Method: The infant protective helmet for babies is washable and repeated wash will not deform the toddler helmet for babies. Pls don't bleach, iron or dry-clean.