I was looking for an open water wet suit for recreation swimming vs competition. Most swimming wetsuits are very high neck and uncomfortable. I asked Roxy about sizing and was skeptical with their recommendation. They were spot on. It fits like a glove and I don't feel like I can't breath. I also don't have excess neoprene around the waist which I usually do since I am short waisted. I bought the jacket 1 size up for paddleboarding but had to return for one more size bigger since I have a wide back.