Swiss Gear SA3181 Black Computer Backpack - Fits Most 15 Inch Laptops and Tablets Fully Padded Laptop Compartment Plus an Integrated Tablet Pocket Airflow Back System Provides Extra Padding for Comfort and Maximum Back Support The Shoulder Strap System is Contoured and Ergonomically Designed with Added Padding for Comfort and Control Fits Up To a 15 Inch Laptop Audio & Media Port for MP3 Players with an External Headphone Port Zippered Organizer Pocket with Removable Key Fob Sunglass Holder and Cell Phone Pocket on Shoulder Straps Two Side Water Bottle Pockets Feature Elasticized Mesh which Expands to Secure Various Size Water Bottles