Features:- Unique Air vents give improved air flow Scratch Resistant Rubberised Finish Custom Branded Rivots Premium Printed Logos Additional Padding to Customise Fit Embossed Logo on Sizing Padding Embroidered Strap Branding Colour Coded Logos and Straps Heavy Duty ABS outer Cap High Density EPS Foam Inner Shell 3 Point Nylon Strap Nylon Buckle (rather than Plastic) 2 sets of pads for improved custom fit. Certified to BS EN1078 and CPSC standards.  To measure your head, measure round the forehead to the back of the skull.  It\'s your brain so do you want to save it?