In mold climbing helmet suitable for unisex applications summit climbing ice climbing ski touring mixed size adjustments rotary knob adjustment system height adjustable headband adjustable chin strap inner padding removable chin padding with chin pad head lamp holders with headlamp mount 4 clips outer material micro shell inner material polystyrene size head circumference 56 61 cm number of air vents 12 weight 430 g security standards en 12492 en 10