A1 Short, a mid-support type that prevents foot inversion and firmly supports the ankle. I tried it on once, but it didn't fit, so I haven't used it since. It's a beautiful item, almost unused. - Brand: ZAMST - Model Name: A1 Short - Size: Right M - Style: Mid Support - Features: Prevents foot inversion and supports the ankle *The box will be discarded. Only the item and the instruction manual will be shipped. Thank you for looking.