Clash or compliment the bike colour, the compel ARX helmets puts them in control. With a highly protective polycarbonate shell and a snug cinch fitting system, the Compel ARX doesn't just look the part, it keeps them safe on their adventures. Suitable for head sizes 49cm-57cm.Features:Protection: In-mould polycarbonate shell ,Fit system: Cinch ONE™,Ventilation: AirFlow ventilation system,Visor: Removable visor,Padding: TransTextura Plus™ X-odour anti-microbial pads,Extra: Integrated magnetic light mount with reflective graphic,Sizes: S/M (49-57),Colours: Red / Blue/ Green / Orange / Yellow.