Fully Padded Laptop Compartment with Secure Velcro Strap Closure * 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 * Extra Large Zippered Main Compartment with Padded Tablet Sleeve * Audio & Media Port for MP3 Players with an External Headphone Port * 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 * Zippered Organizer Pocket with Removable Key Fob