I ordered an 11 medium. I needed it narrower, and since the straps did not allow pulling it tight enough, I had a shoe repair shop shorten them...now the fit is fine. However, the frustrating part is a buckle that is VERY hard to operate....in fact impossible to adjust while on the foot...so the only way is to slide the shoe on after adjusting off the foot...which is hit and miss!!! The best thing is a great sole...but, the mechanics of adjusting the fit are frustrating!!