The outer fabric is oxford cloth and the lining is twill, and since no interfacing is used, it can be folded up small and stored in a school bag. Size: Height: 36cm Width: 31cm No gusset, with lining Fabric: Outer: Oxford Lining: Twill Handle: Acrylic band Each item is carefully handmade, but 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.