I selected the "2115 Color5" variant of this belt, which is purple, khaki, gray, and white in color. I love the color combination. I usually wear jeans with a 34" waist, and selected the Medium (fits 33-36" waist) size. This one measures roughly 42" total, not including the buckle hardware, and fits me on the slightly short side. When in doubt, though, I'd generally recommend going for the smaller size as the elastic will relax after being worn the first few times.
As I mentioned, I have a few other belts of this style. They're very comfortable, since they have finer adjustment and more flexibility than a traditional belt. There's also some stretch as you move and bend over. This is one of the higher quality ones, with real suede leather accents in brown. I like the color combination, with the purple being a deep royal color. It matches the pictures pretty closely.
The price is a little higher than some of the others I've gotten over the years, but I think the higher quality justifies it.