I bnought these for my husband who wears a 4E 11.5 and these Wolverine XW fit perfectly. We are back-country USFS volunteers and he used these boots daily from May through Aug 2008. The only problem, and it is a big one, is that the stitching on the seams around the outside of each boot began to separate. I can get them repaired but it will negate the waterproofing. The components wore well and the boots were comfortable but just did not hold up to daily wear in the back country of Wyoming.