The 6D fits very well into the upper compartment, with battery grip does not fit in this, unfortunately.
The following lenses I have placed in my backpack: 24-105mm, 85mm and an extra compartment for a change of objective for the 70-200mm, + lens hoods. Everything goes well and I still lenses for about 2 square.
The small compartments at the front and on the side are well structured and offer very good place for filters.
A few smaller pockets for eg battery, memory card or remote release would have been helpful, but unfortunately missing.
The Moulded base is incredibly convenient, the backpack is so safe and just even in muddy wet ground, the backpack can be easily cleaned and remain dry inside.
The tripod receptacle is okay because I've seen better systems, but it is sufficient to transport the tripod. For my tripod approx 80cm long do I use this device only rarely, since the stand is too big and I'd rather go with an additional tripod bag.
Conclusion: The place for a full-frame camera without battery grip is really very good. For those who want to use a battery grip, it is advisable to convert the bag. My equipment is great and I have still room for example, a small umbrella, drink and flash. The notebook compartment I simply used a storage option of a vest.
The price / performance ratio with 25J guarantee have really convinced me.
Should you have any questions or need images, please write a comment. I hope I could help!