This compact backpack is from TUMI's alpha 3 collection and is made of delicious ballistic nylon material. The backpack's designed interior makes it easy for you to organize your things. The bag contains a pocket dedicated to a 15" computer (max. computer dimensions 38 x 26.5 x 3.75) and tablet. The backpack is also equipped with a waterproof side pocket for the water bottle. The backpack can also be expanded at the bottom, which gives you the freedom to to pack something bigger in the small backpack.