because I was told to size up for these skorts I ordered a Med. Way too big! I contacted skort obsession and before I put the items in the mail for return they had put the smaller sizes (s) in the mail to me. Well wouldn't you know those were too big. Again I contacted them and AGAIN they put the XS in the mail right away! I now have 2 XS and they are perfect. I did use the size chart, but since these skorts are stretchy XS is right for me.