Airflow Back System: Multi-panel airflow design provides extra padding for comfort and maximum back supportShoulder Strap System: Specially contoured shoulder straps are ergonomically designed with added padding for comfort and controlWater Bottle Pocket:External pocket features elasticized mesh pocket which expands to secure various size water bottles for convenient access,Audio Interface: Internal pocket includes special pouch to secure and hold CD or MP3 player with an external headphone portOrganizer: Interior pocket organizer provides detachable key fob and divider pockets for pens, pencils, cell-phone, and CDsCompression Strap System: Designed to adjust backpack volume while securing contents and preventing unwanted vibration

• Features:
• Brand: Swissgear
• It's water-resistance.
• External size: 50*32*20cm 15.6 Inch
• Color: Brown
• Material: 1680D Ballistic Nylon
• Weight: 1.3kg(including package)