This transparent back pack has one zipper pocket on one side to fit a cell phone, and a mesh pocket on the other that would fit a water bottle. This back pack has 3 different compartments, one small pouch in the front for a wallet sized item, one medium sized pocket behind for cosmetics or snack sized items, and a large compartment for books, or portfolio sized items. This item is perfect for a carry on bag for travel (get through security hassle free), for work, or school. Get this clear back pack and say goodbye to rummaging through your bag looking for your cell phone, keys, or lipstick. With this back pack you know exactly where everything is.