I used the Amazon size chart provided and I ordered the Pear color in medium size, even though my measurements put me on the cusp of med and large w.r.t bust size. But upon receiving it, the med sized jacket is too large - the shoulder seams are hanging off my shoulders and I am not skinny for my size, although I am only 5ft 2 inch in height.  It seems I should have probably ordered a small.  Otherwise the jacket seems ok quality - wise. I have not worn it as I will probably give it to someone else as a gift. The fabric is not thick but not too thin either.  It appears this jacket should probably be labeled as a sweater in my opinion as the fabric does not really seem wind or rain resistant. I will post more once I have the opinion of the final recipient of this garment.