Mulit-Functional Sling Backpack

*NWOT* Multi-functional Yellow/Black/Grey Sling Backpack -Outside -2 bottle holders (L&R) -2 Outside zipper pockets -1 adjustable shoulder strap ( can be zippered into two straps to be worn like a backpack) - 2 headphone jack slots -1 USB slot (charger not included, fits any standard USB wire) -Inside Pocket -1 Big Sub Inner pocket -Main Pocket - 3 card slots [outlined in decoration of bag] - 1 cellphone slot [outlined in decoration of bag] -1 Big pocket **This bag is perfect for EVERYONE, perfect to take on a day hike, that excursion you've been waiting for the whole week**