I have a fair few merino base layers from various brands. The Icebreaker ones really last well, I’ve got one that I refuse to chuck out despite having used it maybe twice a week for well over ten years.
Smart wool is also good, as is dhb from Wiggle, but the weave of the Icebreaker seems better. Sports Pursuit often have sales to make the cost palatable.
That’s interesting , they do look good quality. I’ve got quite a few from howies and they’re really good value; and they’re in a sale regularly