This bag is not very big and it was what I wanted. I can still put without forcing a 100d with 18-55 cannon mounted a 55-250 lens, a 50mm and the visor of this little world. A front pocket provides storage under, phones, accessories, etc. In short, I do not regret this purchase. In use, even attached to the back it is easy to bring the bag to the front to take the device. Five star!