I was concerned when ordering this item for my granddaughter, so I e-mailed the seller to inquire about whether or not it ran large or small, etc. I told them that her mother said she wears a women's medium and I explained that she is a bit "chunky" and asked if I should order the sm/med or the lg/xlg. One never knows if the lg/xlg is really going to be huge so I thought I should ask. The reply was that he thought the sm/med should be good. So when it arrived, I was dismayed to see how small it looked. I've sent it off to my granddaughter and I'm really worried it won't fit.