The panels on the side weren't my favorite. I ended up returning it for an all black one and a size down also because it fit, but wasn't as snug as I prefer. For reference, I ordered the Large based on recommendations from friends and the weight class estimate but I'm a medium in everything spandex, and l'll know if that is still correct when my exchange gets here. I'm about 42 chest, 33 waist, and 41 seat, and the large felt ok, but was a little loose in the lower back for me. I'd rather it feel a little too tight than a little too loose in that area. (My previous singlet from a different brand was a medium without contoured panels, and I had to take the waist area in about 3 inches total after sizing down). I hope this helps someone get a better fit the first time.