I am glad I read other reviewers say to order a size up.  I am always a medium and bought a large.  fits perfectly and is warm. but not bulky.  a 4 instead of a 5, only because the zipper was a bit stiff, hopefully won't be a problem, and I really hope it doesn't shrink, I wouldn't want it smaller or larger, yeah just cold water I suppose.  so used to throwing in everything at once, in hot!