We are using GRS certified recycled fabric for both polyester and artificial fur, on boot lining and insole cover. FSC certified shoeboxes are widely used. Besides these, we also use recycled rubber to make rubber boots. The recycled rubber is from 2nd choice new rubber boots as well as used rubber boots. We filter the rubber, make it clean, desulfurization and mix recycled rubber with new rubber so that physical performance of recycled rubber boots are guaranteed. We can make both upper and sole with recycled rubber.