●Optimal fit: Puky HELMET M with swivel adjustment system and padded plastic ring, easy to adjust to head size of 54-58 cm for a secure fit. ●Lightweight and ventilated: only 260 g weight for free movement, 17 ventilation holes for best air circulation and cool head, plus integrated insect protection. ●Robust protection: high-quality outer shell made of polycarbonate fused with EPS foam inner shell in the in-mould process absorbs shocks efficiently. ●Safe in road traffic: removable light module with steady light, flashing light options and four reflector stickers for 360° visibility in all lighting conditions. ●Stylish design: fashionable matte finish in pink and other colour options, for children who want to express individuality and style when cycling.