Just finished a long track day in these gloves. In Alpinestars I am a Medium. AGV definitely runs a little big. I purchased the small, and they are still slightly large. Quality is great. This model isnt best suited for the track, more for aggressive street, but they got the job done and were great. They allow a very natural feeling on the grips/levers that you get out of a premium glove. Only wish I have is that they included a touchscreen friendly fingertip.
Great Product, Great Company.