I use the bag to transport my lenses because it is padded, the right size for 3-5 small lenses and is water-repellent. A Sony 70-200mm lens fits perfectly in terms of length (just for reference). The main compartment can be divided up variably using the removable divider and I particularly like the fact that there is another movable pad at the top of the divider so that you can put something on top but the camera, for example, is protected. This also makes it easy to stack, e.g. two lenses, if the height allows it.

There are smaller pockets for filters and batteries in the inside of the lid and on the outside of the sides. However, they do not have a zipper or Velcro fastener, so you should be careful that nothing falls out. The front pocket has a zipper and offers space for a cell phone and other flat items.

The strap is long enough to carry the bag on your shoulder. But I particularly like the fact that there is also a handle at the top so that you can easily carry the bag in your hand. This means you are not forced to use the carrying strap for transport, which in my experience just results in the bag dangling in the air.
All in all, I am very happy with the K&F camera bag and will also use it for smaller setups, such as street photography or when traveling with a camera and few accessories.