Letting them choose their favourite colour will encourage them to wear their helmet. An anti-pinch buckle makes it easy to put on. An adjustment dial provides good support and comfort. Design benefits : Impact protection Protective shell made of EPS, compliant with standard EN 1078. Adjustable Rear dial to adjust the head size and adjustable side straps. Ventilation 6 air vents. Lightweight Weight: 200 g in size XS and 220 g in size S. Size - Head Size Conversion: XS: 48 - 52 cm S: 53-56 cm