High-quality bicycle helmet by ABUS. With High-quality bicycle helmet from ABUS. With magnetic fastener under the chin and magnetic lock below the chin and turn-lock fastener at the back of the helmet for a turn-lock fastener at the back of the head for a perfect fit. Very good perfect fit. Excellent visibility thanks to reflectors and blue triangle light with reflectors and a blue red LEDs mounted at the back for triangular light with red LEDs at the rear switching on. With optimum ventilation that you can turn on and off. Features optimal ventilation and fly screens. and flyscreens. Colour: Anthracite/Black Color: Anthracite/Black Material: polycarbonate, polystyrene Volume: 10 to 12 l Volume: 10 to 12 L Size: 52 to 58 cm (M), 56 to 61 cm (L) ***** ***** ***** ***** *****