50NTA helmet is a helmet with 24 air intakes, 260 grams and many graphic versions for all cyclists who demand quality and style.Expanded polystyrene shell that optimizes crash impacts; - 100% MADE IN ITALY; - In-moulding innovative construction, complete protection guaranteed by a polycarbonate layer that covers the shell on the top, on the base ring and on the back. - 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 also be adjusted by using either the dial or finger push system; - Ventilation is achieved by means of 24 large air vents, arranged to optimize aerodynamicsM in moulding: The innovative in moulding technology, joining the inner polystyrene cap to the outer polycarbonate one, ensures a better shock absorption.MIT The MIT Technology, applied to all KASK cycling helmets, guarantees a higher safety and a complete protection thanks to the polycarbonate layer that covers the shell on the top, on the base ring and on the back.up - down The up n down adjustment system gives the most precise and comfortable fitting of any helmet thanks to its unique double pivot design. This allows the back of the head to be cradled by the straps, which are then easily tightened to the correct tension by a central ratchet wheel. This fit system combined with a very breathable, non-slip, gel internal liner ensures top performance for the user.