It's rather that I ask him for kit advice than trying to tell him which kind of socks he should wear.
@TLM
Good ideas!
There is also a Sagrotan cleaner on the market that you can put into your washing machine. Seems to kill smelling bacteria effectively. I never tried it though.
My main problem with wool is that it has such an incredibly long drying time.
I think the times are definitely over when you could maintain your equipment with neatsfoot oil and dry your woolen clothing at the campfire and afterwards go into a pub or bakers shop and getting fully accepted.