B TWIN Kids' Cycling Helmet Bol 900 - Grey

Impact protection - In-Mold Microshell polycarbonate shell; complies with standard EN 1078. Adjustable - Metal dividers, head is held secure thanks to the rear adjustment knob. Lightweight - Only 240 g in size S and 270 g in size M! (130 g lighter than the TEEN 500 helmet). Ventilation - 12 interior air vents and 3 ventilation channels. Size - Head... moreSize Conversion:: S: 52 - 55 cm, M: 55-59 cm.Technology:: Polycarbonate In-Mold Microshell.EN 1078 standard:: Complies with standard EN 1078 for bikes, inline skates and skateboards.EN1078 is a European standard regarding testing methods and requirements for "cycling, skateboarding, and skating" helmets. This standard covers the following aspects: construction, including field of vision, shock absorption properties, retention system features including the chinstrap and tightening devices, and marking and information.