First off, I am 5'4" and 110 lbs and I bought the Sm/Med. One of them fit perfectly, but the other was extremely small and couldn't even get them on. So, that may have been a fluke, yet I didn't return them, because I LOVE the one that fits! Mind you, you should wear a longer shirt as the print for the pockets and zipper is pretty dumb, but the rest look very cool with the right top. I will probably just try ordering these again and hope they both fit!