The Kask Vertigo helmet is one of the safest, best fitting and most stylish helmets available. In particular, the Vertigo incorporates a unique hinged adjustment system that allows for both size and up/down adjustment, which together comfortably cradle the nape of the neck. The helmet size can be adjusted using either the dial or finger push system. Working together, these features give the helmet a superior fit and deliver a feeling of improved security that is quite unlike any other helmet. Unsurpassed ventilation is achieved by means of 24 large air vents, a design feature made possible by the reinforced helmet frame - all delivered without any compromise to the safety or aerodynamic qualities of the helmet. The internal pads are made from KASK's 3D Dry system which draws perspiration away from the head and these pads are removable and washable. Nylon thermo fixed straps, have soft lateral spacers where these straps are in contact with the skin, giving excellent ventilation and comfort and there is a quick release buckle. In addition to the standard reflector stickers on the back, each helmet has reflective strips on every strap. Meets the American CPSC certification for safety. 270 g. MD (48-58cm) or LG (59-62cm).