(1) The filling material is special mesh IXPE: with the advantages of shock absorption, impact resistance, good air permeability, soft, non-toxic, odorless, antisepsis, environment protection, etc.;    (2) The facing and lining material is 100% cotton: with the characteristics of comfortable, sweat-absorbed, electrostatic prevention, etc;   (3) With demountable and moveable visor: When the infant falls forward, the visor can incline towards the face for protection at the moment of touching ground.   (4) The hat has changeable overall style, light weight and large adjustable size (long use period);   (5) When hat is hooked by a certain external force, the magic tape with great stress will loosen automatically to protect the infant. Applicable Age: Baby from 8 to 80 months.  Size: With head circumference of 43cm to 56cm and weight of about 62g. Package content: 1pcs of baby helmet with opp bag and 1pcs of original Instruction