Giro: DOWN AND DIRTY The Quarter is one of the lowest-profile helmets we’ve ever made, and it’s also the lightest we’ve made with an ABS shell. The essentials are here an EPS liner for impact management, a tough outer shell, riveted webbing anchors and plush, sweat-absorbent pads for long-lasting comfort. Another standout feature -- the Roc Loc Vert dial fit system allows you to easily adjust the helmet for a secure and stable fit. Available in a bunch of great colors and three Super Fit sizes. FEATURES ABS shell with EPS liner Roc Loc Vert dial fit system 8 vents CONSTRUCTION ABS shell with EPS liner FIT SYSTEM Roc Loc Vert