Material: Waterproof printing canvas fabric・ polyester lining・as it ages・ it won't stain and can be easily cleaned.Dimensions: 30.3 x 14.2 x 40CM・Weight: 0.85kg・ The laptop pocket will fits for notebook up to 14-inch perfectly.Structure: Inside: a large main compartment・ a Ipad interlayer place・ two open side pockets. Front a zippered pocketFunction: Plenty space to hold a ton of stuff for school and daily necessities such as textbooks・ clothes・ cell phone・wallet・ portable chargers・ MP3 player・ etc. Keep your items organized and Easy find what you wantOccasion: Functional and versatile fashion backpack to wear for school or for travel for outside: It is a great size bag for school and college students carrying Ipad・ books.It is a well-designed backpack which is great for daily・ college・ traveling・ business・sports and outdoor activities.