The O'Neal Blade Helmet Black has a lightweight 2-shell fiberglass construction for perfect individual fit, oversized vents for maximum airflow and cooling and sweat-absorbing and removablewashable inner liner. Features a height adjustable visor, O'Neal Fidlock magnetic buckle for easy, single-handed fastening and release with durable multi-colored clear-coated graphics. GoPro mount included. Size Guide: X-Small: 20-1/2" - 21-1/8" (54cm) Small: 21-1/4" - 22-1/8" (56cm) Medium: 22-3/8" - 23-1/8" (58cm) Large: 23-1/4" - 23-3/4" (60cm) X-Large: 23-7/8" - 24-3/4" (62cm)
