Crumpler The Private Zoo Computer Backpack for Laptop Two Storage Zones: Zippered Main Compartment With Padded Sleeve Large Enough To Hold A 15-Inch Laptop Fully Adjustable Ergonomic Harness: Designed To Distribute Weight Evenly, The Private ZooS Adjustable Harness Straps Are Body Contoured. Perspiration Control: To Help Wick Away Perspiration, The Rear Of The Bag And Underside Of Its Harness Both Feature Air Mesh Padding. Safety Reflector: The Rear Reflector Helps The Bag And The Person Carrying It Stay Highly Visible After Dark. Water Resistant: The Bag Outer Is Made From Water Resistant Materials And Features Hooded External Zippers.