IGX

http://www.rei.com/product/686599

I don't really keep up with the newest shit in outdoor clothing, but I needed something for kayaking in cold air and calm water that was thin enough to fit under a drytop & PFD. The fleece stuff I have is all a few years old and is thicker and not intended to fit under multiple layers of other shit, being cut more like a sweatshirt or jacket.

This thing rules. Today I put on a rash guard on as a base layer, then this, then a PFD. Air temp was in the low 50's and I was completely comfortable feeling as though I just had long-sleeve light shirt on. I thought of cold weather kayakers as wackjobs who don't have the sense to stay home when it's cold, but properly geared up, it's pretty damn pleasant. I had to loosen my PFD because I was getting a bit warm.

Strongly recommended.

Thanks Gramps

I just became an REI member and have been adding to my outdoor equipment lately.

I've been since told that the Patagonia R1 pullover is even thinner with some kind of patented quilting. On sale it's the same price as the North Face product. Might also be worth consideration, but I haven't tried it yet.