I bought the trio, skirt, bikini bottom and top. I normally wear a size 4 and bought the set in a small.  The skirt fits o.k., the top I needed to adjust the straps to lift the bra a little higher.  Easy sewing project that could be done by hand.  The bottom came in xsmall and is way too tight.  I won't wear it without loosing a couple inches in my hips, which isn't likely.  Not worth sending back.  It's a cute outfit, although not of high quality.  I expect it will last thru one season.