Function: The fine painting process makes the helmet very smooth and not easy to be scratched Small brim design protects from sun rays and prevents eye glare The outer edge of the helmet adopts a simple splice design, which gives the helmet more texture Specifications: Type: Half helmet Material: ABS material Applicable gender: unisex Applicable season: four seasons Color: Matte Black/Black Package weight: 1.05kg / 2.3lb Package size: 31x28x19cm / 12.2x11.0x7.5 inches Size: suitable for head circumference M55~56cm, L57~58cm, XL59~60cm, XXL61~62cm Package Included: 1x Half Helmet Notice: Please measure your head before bidding. Take a head measurement with a tape measure. Wrap a tape measure around your head by one inch or 25mm or 2.5cm above your eyebrows, just above your ears and to the widest part at the back of your head. The widest measurement will give you your helmet size.