Troy Lee Designs A1 - All-mountain helmet in race design with Mips rotational brain protection. The reinforced polycarbonate helmet shell of the A1 with moulded EPS inner shell extends over the sides and to the rear edge of the head, providing ideal protection in the event of a fall. The Mips protection system reduces the rotational forces that would act on the head in the event of an impact. The adjustable visor is held and regulated by anodised aluminium screws. A three-position adjustable retention system allows you to customise the fit to your individual needs. This also allows you to wear goggles. The one-piece inner lining is removable and washable. Its antimicrobial, moisture-wicking material guarantees a dry, comfortable feel in the helmet, even in hot weather. When it gets hot, the 8 inlet and 8 outlet openings allow air to flow through the helmet and noticeably cool your head. InMoulding is a technology for optimising the weight, ventilation and stability of the helmet. During the manufacturing process, the outer shell is bonded with the impact-absorbing EPS material to form a single unit.