I'm buying more of these. I ordered the medium, I'm 5'8" 125 lbs, 4/6 dress size and the fit is really great. Possibly could've gone down to a small but I like the slightly extra room and if they shrink at all when washing it'll be perfect. Either way, both the shorts & top are lined in soft material making the fit even more comfy and wearable. I was weary, online clothing shopping can be hit or miss. This set is fantastic, true to size, totally adorable and not found in any stores and so original! I love it!