The Alto DDV or Drop Down Visor meets or exceeds DOT safety standards and is constructed of an advanced fiberglass composite shell for maximum protection. For that perfect Zox fit and comfort, the Alto DDV is made in two shell sizes from 2XS to small and medium to 2XL, and weighs only 2 pounds. The new EPS liner system allows for a narrower profile and the high flow internal vent system keeps riders cool all summer long. The helmet itself comes with ear protectors and a high performance shorty visor. The DDV or Drop Down Visor is an easy push and pull retractable, high definition shield that can be replaced easily with a number of different tints.