Features:- Provides a sense of comfortable feeling to baby and will reduce the baby's head injures.- The fill-in layer is made of high density and elastic sponge which can reduce the impact force when hit and also free from smell.- With the function of damping and cushioning, it can avoid or mitigate damage to the head when the head of infant is collided.Specifications:Material: Cotton + memory spongeApplicable age: 6-15 monthsHat circumference: 43-58cmPackage Included:1 X Baby HatNotes:1. Manual measuring, please allow 1 ~ 3mm error, thank you.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the picture.