This is a wonderful winter coat that works for work as well as for casual wear. It is very warm, and, while it is a puffy down coat, the tailoring at the waist, the extra length, and the slight slant of the stitching help keep me from looking like the michelin man. It makes having to go out in the snow much less heinous. A medium has plenty of extra room for sweaters (I generally wear a size three or four), but I think a small would have been a bit snug for layering.
