
These are EXTREMELY comfortable with one exception. They don't breathe all that well. Wearing just plain tennis shoes, and not doing any physical activity, my feet became sweaty
These socks keep your feet comfortable no matter the temperature. Hiking in summer heat leaves your feet sweaty, but these socks wick the sweat away from your feet, helping them to stay dry and relatively cool. I've submerged my feet in icy rivers with these socks too, and they retain heat well enough that after a few minutes I couldn't tell that my feet had gotten cold at all. They're very durable in the toes and heels; these socks have outlasted any other socks that I've ever put through the same treatment. And they're a breeze to wash/dry. These are without a doubt the best socks I've ever owned, and the only socks I care to have with me when hiking or travelling.