I just learned about eHaberdasher via this Reddit thread and was just about to pull the trigger on a Suit Supply Napoli in 34r -- I've tried it on, and loved it. My previous suits (a Joseph Abboud and a Hugo Boss, both purchased about 10 years ago) are pretty boxy on my very slim frame (140lbs, 5' 11")
I'm excited about paying just a little more for a fully canvassed suit and something from a smaller retailer/shop, looking at the Benjamin navy. Question is: should I stick with 34r? I don't know the exact chest and other measurements on the Napoli, but I do like how slim it is. I've heard the Benjamin is a cut a little more generous. Any advice on sizing?