[Design Description] Full-width printing, multi-sided printing [Material description] Environmentally friendly lightweight super polyester canvas and smooth zipper. High quality materials make you feel comfortable while carrying. The empty bag stands upright and the packing type is hard. Ergonomic design: The adjustable shoulder strap and back are filled with cushioning for comfort, cushioning protection for a laptop or tablet, and protecting your back when you're carrying heavy loads. No more shoulder discomfort. [Application scenario] Multi-functional backpack: Fashion printed backpack is an excellent backpack for daily life. Easy to carry, suitable for school, work, weekend getaways, Tours, hiking, camping, hunting, hiking, biking and other outdoor activities, etc. I am also a great Thanksgiving, Christmas, birthday, Valentine's Day gift to your best friends, friends, family, classmates, etc. [Accessory construction] 1 zipper main bag (inside the main bag 1 computer compartment, 2 insert bags, 1 zipper hidden bag), 1 zipper front bag, 2 side bags. The master bag fits your laptop, iPad, charger, books, clothes, snacks, wallet, pencil case, wallet, textbooks, notebook, etc. Make them in order. The side bag fits your umbrella, water bottle and juice box. Front zipper bag, suitable for your keys, mobile phones, small napkins, pens and some small things, or other primary school supplies [Special note] This size data due to different measurement methods, error within 1-3cm is a normal phenomenon