Having been an Arai diehard for years, my last RX7 just didn t live up to expectations. I persevered for the 5/6 years but knew I needed a change this time. I had seen pictures of the Alpinestar R10 and thought it was beautiful but my god the second I tried it on I was sold. I ve always been a medium but the shop assistant recommended a large. The moment I tried it on, it was snug but not uncomfortable, full hamster cheeks in operation. However the lining is plush, comfortable and well suited to my head shape. What s was really staggering was my first ride out with it. As the owner of a Streetfighter V4S there is zero protection from the wind and yet the helmet is one of the most aerodynamically neutral helmets I ve ever ridden with practically zero buffeting and hardly any wind noise!! It made riding an absolute pleasure. Personally I ll keep buying these for as long as they make them. Try it, buy it you won t be disappointed. Also exceptional service from all at Sportsbikeshop!! Having been a Manager previously for Hein Gericke, I know what it takes and these guys are a class act!!