C-look Ecop is made of 100% special recycled polyester fiber . Fiber is made from collectetd used PET bottles through the material recycle process. All of pellets is certified to GRS Authentication. That enables the effective use of available resources without relying on fresh oil and it’s production process has a lower impact on the environment. C-look Ecop looks like cotton sewing thread. Special polyester fiber and special spinning method provides the similar appearance to cotton sewing thread and less fluff. C-look Ecop combines both good characteristics of cotton and polyester. It has the natural feels, less luster like cotton, and high tenacity of polyester.