Really Effing Light!
This is a go-to lightweight backcountry sock that is seamless and made out a mix of materials ideal for touring: Merino = warm, dries quickly, ZERO STINK; Nylon = STRETCHY, dries quick; Lycra = Snug fit.
These are my go-to sock as they don't bulk up or cause any rub. They'll stay in place and over the calf for your entire tour thanks to the Lycra.
These also double as good running socks as they do add a bit of calf compression.
Made in Vermont. Guaranteed for life.
46% Merino Wool, 50% Nylon, 4% Lycra® Spandex