NWT Melon Helmets Kids Double Gray Striped Helmet Retails $80 Size XXS-S, ages 3-8 Our white with light-grey stripes, Double Grey helmet. Melon Helmets combine the highest safety standards, engineered for thrill seekers and keyboard commuters alike. Features: Designed for skateboarding, biking, scooting, and commuting. 30% lighter than conventional BMX helmets. Patented buckle for no-pinch, one handed operation. Optional breathable Coolmax Pads in every box (adds 5/8/12mm of comfort).