All you'd expcet
Great function/comfort/looks. But it's synthetic and will stink after an hour of sweating, and I don't mind body odor. I hiked for 30 minutes when too hot, just to see what'd happen. Sure enough, I passed the stink threshold, which takes about 2 weeks in a similar wool top. As awesome as Patagonia's capilene/synthethic stuff is, I predict a continuing trend toward naturals. All the new wool stuff is superior unless you shower daily and sweat minimally.