It's not as if I haven't admittedly accumulated a large range of camera bags, cases and trolleys over the years...
When I was offered this small camera bag from "K&F Concept" (a brand I've never heard of) to test via the Amazon Vine program, I still pressed the "order" button, which, among other things, caused my wife to roll her eyes.

The reason for wanting to test it is simply this:
I've had the Tamron 35-150mm 1:2.0-2.8 for about 1 ½ years now and I'm noticing more and more that for short trips I just strap one of the Sonys behind it and leave everything else at home.

But my collection of high-quality and sometimes extremely expensive camera transport options (Peli, Compagnon, Domke, ...) had been designed over the years to carry more and more.

A usable, suitable bag for this 1-lens ensemble (although this one lens is not exactly small) was no longer really in between.

This bag is made in China, but that doesn't necessarily mean anything these days, even for high-priced brands.

The fabric (polyester) does feel a little cheap.

My first thought was: Let's see how long it holds on the corners, especially since there are no rubber feet on the bottom and you always put the bag on the floor with the fabric.

But I also have to say that this bag is by far the cheapest in my range at a price of 39.99 euros, which is why I should perhaps not make such demanding comparisons here!

With a height of 29cm, this bag is a perfect fit for the A7III + Tamron 35-150 combo. (See picture)
The divider, which is flat on the front wall of the bag when delivered, can be inserted horizontally in the bag and bent upwards so that there is even room for a flash or something similar in size in the lower part of the bag, next to the lens.

I haven't had a sling backpack for a long time.
I once had something like that from Lowepro and I think also from Kata, but as the weight of the equipment increased it became more and more unwieldy and uncomfortable to carry and so I sold it many years ago.
But something like that is actually quite nice to have in this size.
I do have one (“small”) criticism here:
The strap could be 10cm longer for me to carry, although I must also say that I am 1.98m tall...

The following are positive:
- The bag itself looks quite well made in terms of the seams, fasteners, straps and handles,
- the padding is kept within limits (which I think are quite sufficient), which also saves on size and weight,
- the side compartments offer space for a few small items

And some details are really well thought out:
- For example, the side pockets on the right and left, which bulge out properly with the elastic band and pleat on the back
- or the zipper on the main compartment, which runs diagonally to the body, allowing most of the top of the bag to be pushed forward, making it much easier to see and access from above. (See picture)

But this zip on the main compartment is where I have my most obvious criticism:
negative:
- this zip is unfortunately not padded at all on the inside or lined with a fabric lip! (See picture)
This means that when you take the camera out, which experience shows usually has to be done quickly so you don't always do it very carefully, you always scrape it along the metal zip and annoying scratches on the case and lens are inevitable.

Other bag manufacturers can do this much better and are gentler on the equipment!

The last point is a shame and spoils the otherwise absolutely positive impression of the bag a little.
(especially since it could probably be done better in the production of the bag with little effort)
That's why I'm deducting a star!

Otherwise, the bag is definitely recommendable in relation to the price.