This is a nice merino piece: 10-ish years old, but barely worn. Problem is that it has several moth holes in it, all in the neck/shoulder area. It's dark gray, and feels like 150 weight to me.
It's a perfectly functional base layer piece, just not so attractive looking anymore. My spouse was throwing it out, and I rescued it, figuring some backpacker here on a budget might want it. You probably wouldn't wear it to the gym, but I've worn plenty of pieces in worse shape than this backpacking, and I bet I'm not the only one here who has.