Whether for dirt or BMX, the aggressive Sanction looks strong, is ultra-lightweight, and highly ventilated. The compact shape (starting from size 52) is optimized for kids and teens who want to go all out. Available in super cool designs that match the lifestyle of action-packed trendsetters. Construction: ABS hard shell, EPS liner; ventilation openings: 15 openings; MIPS technology; visor: removable, hard visor, adjustable.