The PORT 3.1 Notebook Backpack is the ultimate backpack for the corporate professional. Smart, stylish and discreet, this product combines the best features of the 3.1 cases in backpack form. Find a pocket for your every mobile need as the 3.1 Notebook Backpack offers a detachable mobile phone pouch, Nyflex-padded sunglass pocket, hideaway water bottle holder, front zipper pocket for keys, storage for 8 CD/DVDs, and 2 file sections. This innovative backpack also features shock-absorbing feet and a removable waist strap, making it an excellent choice for your ergonomic and organizational needs.