Description: Our kid safety helmet is made of 100% cotton material with soft IXPE foam filling, eco-friendly, comfor .wang-edit-text .wang-edit-text .wang-edit-text 1The facing and lining of our helmet are made of 100% cotton material, environmental-friendly, comfortable, breathable, and its filling material is IXPE foam, non-toxic, soft, antibacterial and has good property of shock resistance, perfectly protecting y 2Y shape hatband could bring a better stability of the hat, and hat won't easy to move or fall off, and adjustable buckle design is for adjusting the length of hatband flexibly, your kids will wear it safely and comfortably 3Striped hole design in the top of the hat is for loosing heat and air ventilating, kids won't feel very hot while they are crawling or playing 4Standard average size, the head circumference could be adjusted from 43cm to 51cm(16.9inch to 20inch), and it is suitable for baby from 8 months to 48 months to wear 5Having good function of damping and cushioning, and it can avoid damages to head of kids, so it is perfect for kids to wear in walk learning, crawling and playing etc