This is the updated Patagonia Men's Capilene 2 LW T-Shirt. I also own the previous version (which happens to be on sale here for only $25). The new version is more form fitting than the old version, which for me makes it less appropriate for just wearing around is casual settings because it's so tight... looks like I'm trying to show off my muscles or somethin. But for athletic activities where the tighter look is appropriate, it looks/functions great. I really dig the new contrast stitching, it looks badass. I bought green & grey, both are nice.