Race cycling helmet suitable for men ladies sizes 51 55 cm 55 59 cm 59 63 cm 61 65 cm us sizes s m l xl main colours black white number of air vents 25 applications road triathlon touring chin padding chin pad not inlcuded inner padding removable washable size adjustments height adjustable wheel adjustment system headring strap adjustable construction in mold weight 240 g inner material polystyrene eps helmet technologies giro roc loc 5 g