There are still room for lenses and accessories. The inside of the bag can be customized according to your needs. The backpack size is sufficient for small SLR equipment. At the side of the bag there is a small belt, which allows you to attach a tripod. In addition one can unfold a small bag of a zipper bag at the bottom of the backpack. This allows even a light monopod carry.
Too many heavy lenses should not pack in your pocket, because then the advantage of rapid frontward pulling lost again. And the wanderings of the bag should also be made more difficult when wearing a bulky winter jacket.
For whom is the bag is? Apart from the photo equipment, there is only little space for all the other stuff that you need to photographic safaris so. The small upper compartment holds most of a paperback book, a wallet and sunglasses, then it is full. But hikers also want to stow their raincoat and the apple and water bottle. These things no longer takes on the backpack. So it is hardly for long walks, because in the photo tray can not seriously bring a water bottle or a rain protection you. But that could not be in the classic camera bags also.
Who wants to have only comfortably carry a camera equipment and readily available, should pull the backpack into consideration. Processing appears fundamentally sound, but the pockets for memory cards are a joke: My Maps I will not entrust these containers, there is great risk of loss. It seems to me the memory card pockets, there is only so, so you can set this feature on the list of features. Overall, however, the price-performance ratio fits this bag. This principle of Sling Bag sends my classic camera bag that hung forever hard over his shoulder, finally retire.
Last note: This is a deeply masculine perspective. Women should be very careful note written by the women of these reviews on a sling bag.