1.1 Retro helmet motorcycle helmet made of carbon fiber: ECE/DOT safety standards. Carbon fiber shell with aerodynamic design prevents buffeting and lifting. density, fully ventilated EPS liner for strong impact absorption. 2.2 Retro helmet strength protection: The helmet shell is crafted from carbon fiber material, offering enhanced strength and safety, along with a density EPS buffer layer. Professionally crashtested for pressure resistance. 3.3 Roller helmet lightweight: The ultralight carbon fiber shell weighs only approx. 600g. The mesh inner lining ensures comfort, breathability, and reduced stress fatigue for longdistance motorcyclists or urban riders. 4.4 Chopper helmet comfortable wear: The openface motorcycle half helmet features an adjustable quickrelease chin strap for an fit. The soft, breathable, and sweatabsorbent lining ensures safety while maintaining helmet ventilation.