>>2797902Bamboo fiber is cellulose, like cotton. I recommend wool.
I don't have any brand in mind as I'm still using socks from a decade ago but you won't have trouble finding them, pick a pair made for hiking specifically or a thicker traditional type, avoid excessively wide knitting.
It's best they have a thicker sole.
I'd get pure wool or with a maximum of 20% synthetics if you don't mind plastic.
The picture has some tips on boot choice.
>>2797920>That's alright. your heel needs to slip slightlyI disagree with that wholly.
>>2797922I don't doubt your brand is good quality but he will have no trouble finding top quality pure wool socks from the EU, which will be most convenient for him and cheaper.
