An Expedition sock designed for mountains and cold environments. Dense cushioning throughout provides extra warmth, extra impact resistance and extra comfort. A sock that features brand new cupped technology. This incorporates copper ions in the yarn structure at the core of the sock to create an anti-microbial net around the foot to deliver enhanced anti-odour and skin wellness mile after mile. This is made with enduro wool; the first spin of wool, which guarantees softness, quality and durability. Enduro wool also provides excellent thermal balance and moisture control properties. There is a smooth knit leg, incorporating lycra throughout, with rear Achilles cushioning for extra protection. The sock is thicker over the foot pad, with a flex zone for improved fit and comfort on the most demanding terrain. Additional lycra banding is placed on the arch and ankle area for enhanced support, stability and fit over long periods of time.