Our ecoRUN collection of eco friendly running socks are made from recycled and regenerated nylon harvested from the Oceans including used fishing nets. This ultrafine 8-micron fibre knitted on very fine needle machines to produce very technical socks that are extremely close-fitting and highly breathable. Enhanced breathability helps to keep your foot dry and comfortable dramatically reducing the chances of blisters. TEKO's gender-neutral sizing, reduces production waste with zero compromise in sock performance.