I absolutely love these bottoms, they fit perfect while playing beach volleyball, roller blading, and hiking! Being that the material NEVER stretches out during use you never have to worry about the piece moving around when you don't want it to. I am 5'5'' & 135 lbs (4-6 size pants) and found the mediums to be a little sung.
These bottoms are perfect, no weird bagginess or uncomfortable stitching. The only compliant I have is that the elastic around the top is thin, so it really cuts into your skin, which could cause muffin top issues if you get them too small. Otherwise, love them and will definitely buy them again.
I heart patagonia bikinis. I ordered this suit after loving the one I bought in a different print last year. This year I got the ombre bali blue...the print is gorgeous (and the colors hold well even in salt water judging from last year's suit). The bottoms are very flattering in the way they sit across the hips. Also, they are great for people who tend to be more active in a bathing suit. I have a giant butt from cycling, but the suit bottom stayed in place even while running during a game of ultimate frisbee on the beach.
I love the top of this suit but these bottoms fit funny. They are really wide at the top so I got an XS, but they seem to skimpy. So then I got a S but then they are baggy. Maybe I'm just between sizes somehow but they just fit weird.