05 and DOT FMVSS-218 helmet safety standards Features an aerodynamic shell design constructed using an advanced lightweight composite poly-alloy Features a hypo-allergenic and anitmicrobial nylon helmet liner and cheek pads, all of which are removable and washable A flush-fit, side-coverless face shield that is optically correct, compound-curved, scratch-resistant and protects against UV-rays Can be converted from a motorcycle helmet to a snowmobile helmet with a duallens or dual-lens electric shield Features 4-point ventilation with chin, side, forehead and top vents Features a square type D-ring with chin strap holder Provides ample ear cavity space for speakers Clearcoat finish protects helmet paint and graphics, and provides a great shine Comes with a Lifetime Warranty