Whether Dirt or BMX - the aggressive Sanction looks strong, is ultra-light and top ventilated. The compact form (from size 52) is optimised for kids and teens who want to really get cracking. In super-reliable designs that match the lifestyle of action-packed trendsetters. Construction: ABS Hardshell, EPS-Liner; Ventilation: 15 vents; MIPS Technology; Visor: Removable, Hard Visor, Adjustable.