This bag is perfect for carrying up to a medium size DSLR with a zoom lense attached, an additional lens, and extra batteries, memory cards, and other small items. It's well built, quality casing protects your gear perfectly. It's comfortable to carry. The only issue I have with it is that it does not have any other pockets for any papers. It would be nice to have a front slim pocket for a boarding pass, passport, etc. so this bag can be the only thing you carry on board. I think Kata has another bag that has this, but the bag itself is too bag for me, which is why I chose the DT-211.