Multifunctional Men Luggage & Travel Bags Brand Knapsack,Rucksack Backpack Hiking Bags Students School Shoulder Backpacks 15 Inch Laptop MacBook Computer Business Bag 100% Genuine Brand Swissgear original product will be only sold and shipped out by LAZYBOYS with FREE gifts (padlock + waterproof rain cover) Ulti-panel airflow design provides extra padding for comfort and maximum back support Shoulder Strap System Specially contoured shoulder straps are ergonomically designed with added padding for comfort and control Water Bottle Pocket Internal pocket includes special pouch to secure and hold CD or MP3 player External pocket features elasticized mesh pocket which expands to secure various size water bottles for convenient access Audio Interface