I recently bought the D3400 two lens bundle, and picked up this bag as well. It's a perfect match for this bundle! I also bought the 35mm 1.8 lens and the Platinum flash, I was able to BARELY fit everything in the bag, but it fit. I've got my D3400 with the 35mm inside the case, and then two dividers to hold the 18-55 and 70-300 lenses, with the flash on the outside pocket, the charger, body cap and extra SD card in the inside zipper pocket, the flash manual in the back compartment, the stand for the flash in the left outside compartment and 8 AA batteries in a plastic bag in the right outside compartment. I had to adjust the closing straps to their maximum, and zippering shut the outside front compartment with the flash is a bit tight, but everything DID fit. I'm hoping that in time the bag will stretch out just a little, but even if it doesn't I'm very happy to have my camera, three lenses, and a large flash plus extras all in one bag! Quality is superb, it feels well-built and sturdy. Highly recommended!