The Thor Sector Fader MX Helmet is packed with features... Specifications Include: Injection molded polycarbonate/ABS shell Dual density EPS liner features extensive venting Fully adjustable peak Removable and washable moisture wicking liner Flexible rubber nose piece Hi-flow mouth vent with filter Double D-ring retention system Rear shell shape easily repositions the goggle strap Weight: 1350 g with peak +/- 50 g (size L) ACU Gold approved ECE 22.05 approved Weight: 1350 g with peak +/- 50 g (size M)