Hiking Extra Socks? Well, yes, these Finnish-manufactured UphillSport outdoor socks are specially designed for conditions that are more demanding on the feet during hiking, walking or rambling, with extra-deep terry pile that is soft and thick, yet breathable with a ventilated structure. The composition of these socks, rich in bamboo viscose fibre makes them particularly good at regulating temperature, with bamboo’s ability to expand those fibres when cold, and contract when warm, keeping feet at a constant comfortable heat. Bamboo is naturally anti-microbial, so feet will stay fresher for longer. UphillSport Bamboo Hiking Extra Socks have hand linked toes for smooth seams, fitted heels and arch grips for a secure fit, aided by elasticised shafts and a 1x1 ribbed welt at the top.