ROCKBROS unisex children's boys girls bike helmet children's helmet with visor bicycle helmet 54-58cm Christmas gifts Brand: ROCKBROS Head circumference: 54-58cm Weight: 270±30g Color: White, Black, Titanium, Pink Size: approx. 29*21.5*17.5 cm Material: PC+EPS Suitable for: Children and teenagers Features: EXTENDED PROTECTION: The robust PC shell is shock-resistant, while the EPS inner shell absorbs shocks. In addition, the rear and temple areas are extended downwards for greater head coverage and increased safety. ADJUSTABLE SYSTEM: The helmet can be easily and precisely adjusted to any head shape. This ensures that it stays firmly on the head in all situations and that the strap is always in the optimal position. HYGIENIC FRESHNESS: The padding is treated with an antibacterial agent to prevent the growth of bacteria. Thanks to the Velcro fastener, it is easy to remove and wash. This ensures high durability and long-lasting hygienic freshness. OTHER DETAILS: 360-degree ventilation keeps you cool while riding. The visor on the front edge is easily removable. There is also space for a magnetic rear light. VERSATILE: This helmet is suitable for all kids and teens and is the ideal companion for various sports, whether downhill, MTB trails, or skating.