The Fuse Alpha Helmet utilises a high impact ABS outer shell and EPS inner foam to give maximum protection against slams. The helmet is deep fitting for comfort, protection and style and comes with optional padding so you can get the perfect fit. To ensure a comfortable and secude fit a multi-point adjustment strap and quick release buckle fasten down the lid. Size Guide: X-Small: 52 - 54cm Small/Medium: 54 - 56cm Medium/Large: 56 - 58cm Large/X-Large: 58 - 60 Colour: Glossy Red and Speedway, Matte Neon Green, Matte Grey and Block Shade, Glossy White and Speedway, Matte Flash Grey, Glossy Flash Black, Black, White, Matte Black, Glossy Pink, Matte Mint Green, Glossy Black, Matte Miami Purple, Glossy Miami Black, Matte Sand, Matte Navy Blue, Glossy Burned Orange, Matt Sand, Matt Black Mob Mark, Matte White Mob Mark, Matte Black Mob Mark; Size: XS/S, M/L, S/M, L/XL, XL