^ Thanks for the reply, Coldsnap.
I'm 5'7, 145lbs. I usually wear XS in Uniqlo/EG/etc. If there's no stretch to the coat. I'd probably have to size up?
Go with the smaller size. I was gifted some of these swim trunks in a size 36, but since the draw-string doesn't go all the way around I wasn't able to tighten them up to fit comfortably and they fit a bit loose. Now I'm kind of stuck with them.
Apolis is sending me a return label so I could exchange them so I'll let you guys know how the smaller size works out once I get them in.
Going one size down on the swim trunks worked for me. They feel comfortable and the drawstring adds just a bit more secure fit.