Ehdching Cute Polka DOT Canvas School College High School Laptop Bag Students Backpack (Dark blue) Material: nylon and oxford fabric Size: 17.1"x11.3"x4.8"(HxLxW),please allow 1-2cm differs due to manual measurement Application: travel, hiking, school bag, shopping, placing laptop, ipad etc Attribute: Waterproof, durable, adjustable shoulder straps Perfect for students, teenagers