I bought a large and am sizing-up to an extra large.
ok, but not quite
Size is just right on if you wear it at your waist or just below, but better buy a size larger if you plan to wear it with lower cut pants. Also, the inside of the belt is not finished so it is made with an additional piece sewn on the end of the belt so when it folds back through the rings it looks finished. The frontal appearance, wear the buckle is, looks ok while wearing, but near the side it's obvious wear they have sewed on the additional overlapping piece so that it looks finished on the flap that folds back through the rings.