Mountain bike helmet suitable for men ladies sizes 52 56 cm 55 59 cm 58 61 cm us sizes s m l main colour black surface matt number of air vents 22 application all mountain chin padding chin pad not inlcuded inner padding removable visor with visor size adjustments height adjustable wheel adjustment system headring construction in mold outer material polycarbonate weight 250 g inner material polystyrene eps helmet technology lazer advanced