As I unpacked the bag the first time I thought, OK, how are there my 70d fit in with 2 additional lenses. After I did the camera with the 18-135 in the bag, I was surprised how big it is. Have the variable partitions used appropriately and now fits my 70d with attached 18-135 + 1.8 + 50mm 100mm macro pure. Additionally, I have placed the remote release, 2 filters and the Lenspen. Without having to cram everything in the main compartment. The breast pocket is so great that I designed HTC One X with a small purse with getting my (small compartment) and key in the large compartment. The mesh pocket outside is reserved for fast stowing of lens caps with me. But it fits a 0.5l water bottle with pure. For me, the bag is perfect when I'm traveling without me before I actually take pictures. It is located on super and hit by the additional side strap also been without the hassle of back and forth. This bag at the price unbeatable.