Love this vest!!!
I am under 5 ft 4 ins and 106 lbs but sometimes a small is too tight, I always read the specific measurements of the garment and the reviews. I ordered a M and am delighted with the fit and the garment; it's like nothing I have ever seen. Full "cozy fleece" is substantial, with pockets so it can be reversed and the jacquard exterior also has pockets, but it is so stylish and it has a hood. Ever been cross-country skiing in 12 degrees and wished you had a heavier vest without the bulk of a jacket? It keeps your core warm. It's great.