Recycled Cotton Socks. Cotton is the Most Widely Used Fabric in the World. by Fiberising Collected Worn Cotton & Then Spinning It Back into Yarn, You Make New Socks From Reused Cotton. Throwing Away & Burning is a Huge Waste of Precious Energy & Resources. Recycled Cotton Socks at Bosscher International Are Available From 250 Pairs Per Design & Size. Minimum Quantity: 120.