Since I wear a ton of ibex wool t shirts and shorts as well as heaps of wool socks, I wash all my wool in Eucalan.
Air dry. Stuff dries so fast no reason to put in the dryer and wear it out.
I have just tried out a pair of Darn Tough, I bought a pair of "micro crew cushion" to compare to my SmartWool socks. I should have bought a pair in full crew / boot cut length, because the micro crew length is noticeably short - distractingly so I would have to say.
The footbed seems fine, but the length is just odd.