Twolayer design keeps A3 documents and drawing boards neatly organized while also accommodating A4 cards, messages and publications for quick access. Main features and benefits Easy access organization: twolayer layout supports efficient separation of large A3 items from smaller A4 cards and notes, reducing clutter. Multipurpose compartments: main zipper offers secure storage for A3 documents and drawings; a front pocket stores notebooks, pens and tickets; double mesh pockets on the sides securely fit water bottles or umbrellas. Portable and convenient: foldable design makes storage compact; suitable to carry by hand or over the shoulder, ideal for everyday use. Durable and protective: lining helps guard documents from wear; exterior Oxford fabric provides durability and waterproof performance; a doublestitched hand strap with nylon edge adds strength for lasting protection. Specifications and materials Compatible with A3 documents and drawing boards, as well as A4 cards, messages and publications Exterior: Oxford fabric for durability and water resistance Lining: protective to reduce wear on contents Carrying handle: doublestitched with nylon edge for enhanced strength Use scenarios Students and art classes: transport A3 projects, drawings and related A4 materials between classrooms with organized ease. Teachers and educators: carry lesson plans, worksheets, notebooks and handouts together, with space for a water bottle or umbrella. Artists and designers: move sketches, small tools and reference materials to studios or onsite locations without disarray.