It's hard to describe the fit of these, so I'll try to be as detailed as possible. My shoe size is 10.5M or 10W in US Men's sizing. I ordered these in UK 10, which is US 11, which was close... but...1. The section near the ankle gapes open when you step on the ankle part of the shoe. The sides open up, and it's very loose in that area. When you walk with the shoes on, your ankle lifts off from the sole of the shoe a little bit, and it's just not a good fit.2. Now i..