Shell 3K WOVEN CARBON X2F Stone Fibre Innerliner washable QC Quick Change-Liner (Oeko-Tex) with free ears Peak Anti Scratch/ Anti Fog Visor Sharpview Technology NX Quick Release Mechanic Lock Double-D ring Aluminium Features M.A.R.O Anti Roll Off System ECE 22.05 Weight: 1100g M.A.R.O. Anti-Roll-Off-System "M.A.R.O." (Marushin-Anti-Roll-Off) system. This is claimed to prevent the helmet from pivoting. off the head from behind & to also reduce the amount of helmet roll that could hurt the rider s. neck in a crash.