so!  I am 146 pounds and 5' 6".  I ordered the medium b/c I wanted something that fit a bit loosely. I probably could have gotten away w/ the small but this will be just fine for riding back and forth on the boat this summer.  I imagine if I bought the smaller one I could have worn this as a dress actually!  It's cute and the fabric is very comfortable.  I am not a big fan of hoods but this one drapes down my back a bit more so my hair won't get all caught in it.  (I have really long hair!) Pockets are fine, probably wouldn't put anything in them you don't want to lose as they are fairly loose?  No better way to describe; they are great for me to put my hands in, but I wouldn't drop my car keys in there and expect that they were secure. Totally worth the $