1. Material:High quality water resistant lightweight Polyester and Smooth SBS Zipper 2. Main compartment with magnetic leather strap closure,water-bottle pockets on both sides,padded Ipad/Laptop pocket,4 interior pockets,1 outer pocket with mesh pocket inside, 1 secret zipper back pocket,adjustable padded Reinforced Strap,Super comfortable back panels,fits 15" laptop 3. External dimensions: 18" x 12.8" x 7" (HxLxW);Laptop Sleeve: 12"x12" ;Capacity: 26.5 Liters 4. It hangs nicely and comfortably on your back and shoulders with its padded straps. You can organize your tools with the differently sized pockets. There is plenty of room for your keys, cellphone, wallet, etc. The padded laptop compartment fits your device snugly while the main compartment is best for holding heavy textbooks. A true space saver, main spacious compartment with drawstring closure for safety. 5. The Vaschy backpack is a heavy-duty backpack suitable for those who like casual. The unique design is a fashion statement.Its durable material is recommended for students often bringing their college textbooks and notebooks. Shoppers similarly will find comfort with the use of this backpack for their regular grocery shopping.