I have the Xterra Vortex 3 as well and love it. I bought the full-sleeved version first and it works great. There is plenty of room in the neck and shoulders. The water temp was marginal for Memphis in May and DH talked me into ordering a sleeveless version as well, which I'm glad I did. I still had the bouyancy of the wetsuit but didn't burn up in the full sleeve. We start practicing open water swims early around here so I'm glad that I now have both. I don't think you can go wrong with the Xterra.