I am a size 10 and 5'8" tall with long arms. I ordered the size large. The coat fit nicely with a little extra room. It was a nice fit and very flattering. The sleeve length could have been a little longer for me. The length of the coat made it very warm. I tried this one and the piper and went with the piper because I thought that one I would be able to wear in warmer weather. I would love to have both in my closet, for sure, but I had to pick one. I gave it a 4 out of 5 due to the sleeve length.