Made entirely from 2 recycled materials, this book bag is designed specifically for carrying books. The rubberised felt is waterproof on one side and soft and protective on the other, ideal for protecting books and notebooks from wet weathers and bumping. The seams of the fabric are connected with decorative and strong stitchings of suede lace, while the fastenings are made by multiple Chinese button knots. The shoulder strap length is adjustable to accommodate different heights and different habits of wearing a bag. This bag can hold 3-4 books of the average size easily.