Marmot Unisex Calistoga Laptop Backpack, Maple, Dark Maple, OS Polyester Large main compartment stores all your quick outdoor-mission essentials A padded sleeve fits most 15-inch laptops for a quick stash of work essentials An additional front pouch hold odds and ends while the padded shoulder harness with sternum strap adds comfort to the carry Two external water bottle pockets YKK zippers