I'm a 14, and followed the size guidance picking the ' large', but is very snug, definitely a size down compared with my previous non light weigh Flanci. The shorts are too tight at their edge, digging in. Had they been looser I could have lived with it, my previous non lightweight pair had enough give to pop a tennis ball up there. Like the design and the way that the shorts are slightly longer, but will be returning for size up.