Alpinestars carbon fiber helmet is one of the best and highest quality sports helmets in the world. High protection, light weight, perfect design, and the most beautiful look in the world of helmets. Size M 59-60. Used only twice. We also have new ones. Complete accessories including a black visor and a transparent one. Also, an anti-fog and anti-moisture sticker, an external sticker specifically for tracks, and an extra chin guard with catalogs and the box. New Alpinestars SR10 Carbon Fiber, with all accessories. Brand new never used. One of the best helmets.