Lazer Roller bike helmet The Lazer Roller helmet offers protection, style and comfort to cyclists who don't want to spend too much. The low-profile design and comfortable features make it feel equally at home in the city and in the countryside. An in-mold construction keeps the weight down, while a visor provides extra protection. 28 vents ensure that you are always cool and comfortable while cycling. A dial on the back of the helmet allows you to adjust a head basket that securely holds a large part of the back of your head. A quick turn of the TS+ dial ensures a good and comfortable fit that keeps the helmet firmly in place. Adjust it in no time and start your cycling adventures. Specifications: Color: Matte Black Gender: Unisex Outer Material: Plastic Lining Material: EPS Adjustment: Rotary Knob Head Circumference: 55-59 cm Dimensions: 24.1 x 33.8 x 17.9 cm (LxWxH) Ventilation Openings: 28 LED: Compatible TS + LED