- Easy to use: The 2-layer storage design supports A3 size documents and drawing boards, keeping materials organized and easily accessible. It can hold A3 and A4 size documents, maps, messages and publications. - Multipurpose internal structure: Internal pockets include mesh cups on both sides, a zipper pocket for A3 documents and drawings, and a front pocket for notebooks, pens and tickets. The mesh bag safely stores water bottles. - Convenient to carry: Suitable for students, educators and art lovers. Easy to fold, store and carry by hand or shoulder. Versatile carrying options provide a practical way to carry and organize must-have documents, artwork, and more. - Well made: Lining material protects documents from wear and tear. The outer side uses high quality Oxford cloth for durability and waterproof performance. Double-stitched, nylon-cut hand strap adds extra strength to protect your important papers. Use scenarios: - At school: Carry class handouts, maps and A3 worksheets between classrooms with everything kept in reach. - In a studio: Transport A3 drawings, lesson plans, notebooks and pens to and from the workspace; water bottle fits in the mesh pocket. - On field trips: Bring publications, maps and tickets in the front pocket while keeping large documents secure in the zipper and A3 compartments.