HIGH MATERIAL - High quality Oxford material. This art portfolio is more worn and soft, good air permeability when sweating. Anti-aging and not easy to moldy. LARGE SIZE - Art document bag with fabric shoulder strap, luggage rack and shoulder strap - The backpack, practical for carrying and travelling art. ORGANIZER BAG - Perfect for artists, students, hobbyists and teachers to carry artworks, canvases, drawing pads, sketch sheets, painting supplies, etc. COMFORTABLE BACKPACK WALLET BAG - Our artist portfolio design with a wide shoulder strap and thick, breathable padding on the shoulder and back to reduce severity on the shoulder and waist. WATER RESISTANT - The backpack is made of durable and high quality 600D Oxford material with a special finish that enhances its beauty. The inner lining is made of waterproof materials that protect your belongings from water.