Giro Xen MTB Helmet

"A new look and more versatile than most off-road helmets, without weighing you down and cooking you like most skate helmets. Roc Loc 4 fit system, Wind Tunnel ventilation with 17 channeled vents, P.O.V. adjustable, removable visor, In-mold Hardbody construction with internal reinforcement. CPSC certified. Wt: 10.5 oz. Slate (SLT), Pink (PNK), Black Camo (G/B), White Camo (W/W). Super Fit? Sizing: S(20"-21 3/4"), M(21 3/4"-23 1/4"), L(23 1/4"-24 3/4")."