WoW! By wearing these socks you are saying yes to a waste free world. The socks are made from: 59% coffee yarn, 35% recycled polyester and 6% recycled spandex.Worldwide, we produce around 50 billion kilograms of coffee grounds each year. What’s ...left over just gets thrown away… But not anymore! Coffee grounds are mixed with recycled PET to create coffee yarn. This yarn can then be used to be woven into products like these socks. These socks are not only beautiful because of the design that is based on the colour of a freshly made cup of coffee. They also help to reuse our worldwide production of coffee waste.