Our bags are made with RPET fabric.What is RPET fabric ? RPET fabric is recycled PET fabric, which is a new type of environmentally friendly recycled fabric. It's yarn is extracted from discarded mineral water bottles and Coke bottles. It is also commonly known as Coke bottle environmental protection cloth (RPET FABRIC). So, this product is waste recycling, it is very popular in developed countries, especially in Europe and America.