I wanted a back pack to carry for airline travel. It needed to hold my iPad Pro (the really big one), my bulky head phones, all my chargers, water, snacks, and small miscellaneous items. I love how it feels on my back, and the fact that it ‘breathes’. It doesn’t make me sweat. The wide mouth opening at the top makes retrieving my stuff super easy. It fits easily under the airplane seat and leaves room for my feet (I’m a 5’6” female). The only drawback: the shoulder straps are a bit wider under my arms than I would have liked, but so far have not caused me any discomfort.