The lower part can hold all my equipment: a Nikon D7100, with a sigma 17-50, a 55-300 nikor, 50mm, leaving the sun, macro windshields, charger and cables. The upper part is spacious enough, you can put there 2 liter bottles. The bag is comfortable, quick access to the practical case, while remaining relatively difficult to open from behind, there is little chance of being robbed his camera. I would have appreciated a few more separations for the photo part, to further customize the layout of the compartments. The build quality seems very good to see over time if this is confirmed.