Specifications Dimension: 11.5"(L)×8"(W)×16" Weight: 445g(0.98LB) Material :Our backpacks are made of durable twill weave cloth,Woven shoulder strap,Elastic mesh pocket. Lightweight, durable, breathable wear resistant. Multi-function: Our bag is perfectly use as girls/boys school backpack, laptop backpack/bags/sleeves, travel backpack, sport backpack,duffel bag and other outdoor activities.Design Personalized graphics, exclusive designs for you, make you special and unique. Package Included:1 backpack Washing instructions (tips): -Wash it with clean water in ordinary temperature. -DO not wash it with hot water and alkaline detergent. -Hang to dry and store in ventilated place instead of sun exposure. -Wash Separetely to avoid staining. Purchasing Notes: The actual colour of the backpack maybe different from the picture shown due to the different screen of display or reflecting light when shooting.1-2cm error of measuring is a reasonable range due to different measurment methods. Customer Service：If you have any questions, please feel free to contact us by email, we will solve it for you as soon as possible!