Dao123I love my Icebreaker clothes. I don't know the other companies you mentioned except Darn Tough (Canadian, eh?), & only have a heavier pair, BUT! The weave & softness are very similar. When my toes are cold at home, I love pulling these on. They're among my very favourites. They feel good hiking. You could potentially take 2 pr, rinse 1 at night, let it hang off your pack to dry during the following day, & wear them again the next (humidity dependent, of course) (never done it, but know several people who have).
Hope that helps. I'll shut up now :)
MudbunnyI have a couple pair of Fitsocks (they were also on Massdrop). The kind I have, have many nice attributes and I quite like them, but they’re about as warm as regular socks. If you own these, do you feel they regulate better and are suitable summer socks?