I have the summer skin version and like it a lot. I actually wear it in the pool since I spend a lot of time doing drills and it adds just enough warmth to keep me comfortable. That's the point, though, it's a very thin suit and the top is all lycra with insulation only in the leg and somewhat in the torso. It's not going to add much warmth and since it's so thin, might be a bit fragile.

It's definitely not going to serve the same purpose as a dedicated suit like a QR or T1 since it's not nearly as warm.

Hope this helps.

They have a winter and fall model that are supposed to be used in water temperatures bellow 60F (the winter model is for 50-55F)... The summer version is probably not meant to keep you warm...