Some reviewers suggest buying a size larger than your waist.  That wasn't my experience-I measured the belt and it was exactly the size stated at the "tightest" hole on the belt.  So even if I was 4" larger at the waist, I would have been fine.  I'm more worried that I'll lose a few pounds and have to drill an extra hole in the belt.  The belt's quality is very good-no need to pay $30 at other places (I'm looking at you, L.L. Bean) for a belt that doesn't look like it was on special at Walmart.  I bought two belts and am very happy with both the quality and the price.