Warming yet breathable, ankle high UYN Winter Pro Run Socks keep feet comfortably warm even on colder days. Naturally thermally effective Merino wool is used, combined with Natex, a 100% plant-based nylon fibre that enhances climate management, with the ability to dry away moisture 50% faster than standard nylon, together creating a low friction ‘Feather Run Zone’ below the ankle. The structure of the socks is engineered to absorb shocks, provide targeted compression and ensure air circulation is maintained, with a 3D micro-channel structure continually ventilating the weave. UYN Winter Pro Run Socks have ‘Zero-strangle’ cuffs and anatomically shaped ‘Ergologic’ footbeds for a perfect fit. The toes, instep and Achilles tendon are all individually protected.