Adjustable Size: The baby helmets are adjustable with magic tape, the size range for the head circumference is 43cm-60cm. This infant baby head protection hat is suitable for babies aged 6-60 months. The head cushion impact protection caps can effectively protect the baby's head during friction and collision from falling, bumping, and keeping the baby's head away from collision.Ventilation Design: The baby protective helmet is designed with breathable materials and ventilation, special soft adjustment buckle and flexible chinstrap. The baby safety helmet has multiple vents, which can effectively provide ventilation and keep the baby's head cool. Eco-friendly and sweat-wicking, designed for maximum shock absorption and impact resistance.Cotton and Super Light: This infant baby helmet weighs only 58g, there is no burden on the child's head. Super lightweight toddler walking helmet and 100% pure cotton fabric, the filling material is special IXPE net, soft, comfortable, shock-absorbent, sweat-absorbent, impact-resistant and has good air permeability .Perfect Protection and Shock Absorption: The soft helmet has a cushioning function, suitable for toddlers learning to crawl, walk, play indoors, climb on furniture and when parents can't keep paying attention etc. Perfect head protection to keep your little baby safe when they start learning to crawl, playing around the house or outdoors (cannot be used for cycling).Tips:Your baby may not not adapt to the baby's head cushion at first, even our infant baby helmet is soft and comfortable, so it needs your patience for your baby's adaptation process. This special needs padded helmet will not necessarily prevent all accidents, please never leave child unattended.