Audio Interface: Internal pocket includes a special pouch for MP3 players and headphone plug connects with external headphone port

Adjustable padded laptop straps inside to fit different size laptops
Padded Laptop Sleeve: Adjustable Velcro strap accommodates most 15″ laptops. Elastic mesh pockets hold accessories.

Water Bottle Pocket: External dual pockets feature elasticized mesh, which expands to secure various size water bottles. Airbag and massage,shoulder protection. Aiguillette double high-density air-filled sponges, soft, comfortable, and provided a good shoulder protection. Headset jack in the backpack straps. Unique back design Breathable and padded back design and air mesh backpack straps can be adjusted to provide a more comfortable carry while evenly distributing the weight on your back.

Three main compartments provide space for all of your belongings.
Shock Absorbing Shoulder Straps: Shock Absorb Shoulder straps distribute weight evenly and keep you comfortable.

Airflow Back System Multi-panel airflow design provides extra padding for comfort and maximum back support.

Padded laptop sleeve protects most 15″ laptops.
File sleeves help organize files, binder, magazines, etc.
Airflow back system and padded shoulder straps provide extra comfort.
Water bottle pocket with elastic mesh construction accomodates various Size water bottles.

Essentials Organizer in front pocket has pockets and slot for all of your accessories and gadgets; Quik-Access Phone Pocket.

Quik Pocket holds iPod/MP3 player for easy access to all of your gadgets; iPod/MP3 Player Pocket.

Organizer Pocket Interior organizer provides divider pockets for pens, pencils, cell phone and CDs. Removable key fob.Waterproof,Breathe.The more exercise and more breathable