Kids climbing helmet hybrid climbing helmet suitable for children application sports climbing size adjustments adjustable headband shiftable chin strap forward and backwards inner padding foam padding washable removable chin padding without chin pad head lamp holder with headlamp mount outer material abs inner material polystyrene size head circumference 48 54 cm number of air vents 8 weight 310 g security standards en 12492 en 1078 uiaa 106 fea