Externally it looks very good and robust. My EOS 1100D fits perfectly with their EFS 18- 55 mm lens in the while my 75-300mm lens is a half of the inner bag in the other half super place.
The bag offers plenty of space for the extra battery (which I have not yet tried out so far), multiple SD card, a battery charger, the manual, even for a wallet and cell phone.
While I took the bag, it was for a very hot (28 °) but the camera, which was mounted in the pocket and the sun longer, nothing was noted by the exposed heat. On the other hand it was very rainy. I ran velvet bag with camera through the rain (this has to be said that it was thunder Rain, not so fisselig but real rain) and you can imagine wet nor in the interior of the pocket in the side compartments. Really good!
For the interior of the bag Mantona provides 2 parts separation. I now needed but only one is a separation between lens and camera manufacture. The other separation part I hung up the screen of my camera to there again to ensure some protection against impact forces on the surface of the camera bag, because without this there is no real protection insulation between the opening and the lid of the camera bag.
Furthermore, it is in spite of their size really comfortable, had to wear 8-12 hours a day.
Conclusion: Super value for money, always again!