This suit is great! I did size up. I weigh 191 and am 5'4. I went with the xxl and absolutely love the fit. Not too tight on the top. The bottom is a little loose, but that's fine. I find that less material on the side of bottoms is usually more flattering. The top is long enough that if you have a bit of a stomach (muffin top) that typically causes short tankinis to ride up under your boobs and your stomach hang out the bottom-that won't happen with this suit and the bottoms are higher waisted so it manages to keep everything tucked in (not the awkward mom pouch division) I thought the top may make my big arms seem even bigger based on some reviews, but I was so pleasantly surprised, it does not at all. Also, no side boob/fat coming out near the arm pit area. Everything is covered appropriately. The material feels thick enough to not show through when wet but not too thick. The straps are sturdy. The clasp on the back is fun, functional and cute. Bigger girls...go for it!! You won't be sorry!