Fabric backpack 'tofu'DESCRIPTION PATRICK STEPHAN Collection. This backpack features a tofu like shape and large capacity. It's made of a naturally creamy material, so you can enjoy a natural draping feel even when you don't have much luggage. It has zipper on the back so you can take what's inside while carrying it on your back. The material is a new synthetic fiber material that allows dyeing of synthetic fibers with natural dyes. Based on quercetin extracted from the