Hybrid climbing helmet suitable for unisex applications rock climbing ice climbing mountaineering size adjustments rotary knob adjustment system adjustable chin strap inner padding foam padding chin padding with chin pad head lamp holders with headlamp mount 4 clips outer material abs inner material polystyrene size head circumference 54 63 cm number of air vents 10 weight 355 g security standards en 12492 uiaa 106 colour orange