tasc Performance  Elevation Merino Base Layer Bottoms - Men's

I don’t know whether I bought these without fully reading the description or the info wasn’t there, but here’s what I wish I’d known before ordering these: They are very thin, and not pure merino. They strongly resemble Spandex. They are a 35/35/30 blend of bamboo (rayon), polyester, and merino wool. However... after wearing them through a full day, I’ve got to say I am very happy with them. They actually kept me very warm and comfortable under my drysuit kayaking, yet weren’t overwhelming wearing under regular pants walking around and driving. Normally I’d be in a hurry to get out of my layers when I get home, but these are so comfy I’m gonna keep them on until I go to bed. I went with XL after realizing I’m borderline between L and XL. These are stretchy enough that I think they’ll still fit fine if I lose some weight, or god forbid if I gain any also. I just wish they didn’t seem to be sold out in my size; I’d grab another pair.

I knew these would be a little then based on a few reviews I read, but I didn't expect them to be so fragile. They tore literally the first time I put them on. I was trying them on for fit when I received them and they tore mid thigh. I will be returning them. I have no use for a pair of long underwear that is as fragile as panyhose.