I went to the local Marks Work Warehouse to try on a pair of Timberland Work Boots. Although not the same model, tried the size. Fits good, order it based to the fit. When Pit Boss arrived they were too small. Had to return and reorder. What frustrates me is that I did everything on the sizing chart & it still came out wrong. Plus I live in Canada, when returning with Canada Posts. It's another frustrating thing too! They are on strike, with a dying industry! So I had to add a full size up at the end. I did notify Amazon, but no way of knowing if they fixed the problem.