The outer fabric is oxford cloth and the lining is twill. Since no interfacing is used, it can be folded up small and stored in a school bag. Size: Height: 38cm Width: 35cm No gusset, with lining Fabric: Outer: Oxford Lining: Twill Handle: Acrylic tape Each item is carefully handmade, so there may be slight variations, distortions, and wrinkles. Please consider purchasing with this in mind. It will be shipped folded. Please shape it after arrival.