展开Children's helmet 2.0, designed with Zipmold technology (high density foam fused to a hard polycarbonate shell). Matte black. Removable visor. Size guide: Small 52.5 to 55 cm Medium 55 to 59 cm Bern offers a new version of its iconic children's bike helmet, designed around the strengths that have made it a success, with classic but modern styling, reinforced protection and improved comfort. It will delight you with its well thought out design. The helmet has 13 vents, a top ventilation system and two high-performance front inlets to ensure maximum comfort. Ez-Fit tightening system. Now lighter (approx. 306 g).