One size fits all Bullet Youth Helmets. Featuring iconic Slime Balls graphics. Our products are constantly evolving as action sports push new boundaries. Bullet takes pride in producing safety gear that you can trust. Shell: High density ABS injection moulded Liner: EPS polystyrene foam Ventilation: 12 vent cooling system Inner padding: 3 piece removable and washable Pads included 9mm, 6mm & 3mm Safety certificate: CE EN 1078 Sizing : 49-54cm - one size fits all