4-Pack: Computers & Accessories, Basics Premium Backpack, or school, Front pocket organizer with eight sections for keys. 4 Pack, Basics Premium Backpack, travel, Front carabiner clip; external water-bottle pouches; secure strap for sunglasses. 4-Pack: Computers & Accessories, 6 liters, a cell phone, pens/pencils, An Amazon Brand, Capacity: 1626 cubic inches/ 26. Fits most 15-inch laptops; separate padded laptop compartment with top velcro strap to keep laptop in place. Lightweight yet durable multi-compartment backpack - ideal for work. and more, Padded shoulder straps and back padding offer extra back support and comfort; top loop handle for a secure hold when picking up or moving the backpack.