I have the Retrospective 20 affording ample room for X-T1, 3 prime lenses, flash and several small compartments for batteries, chargers, extra storage cards, etc. Items are easily accessed and bag is inconspicuous, especially after wife inadvertently spilled a glass of wine on the exterior. Contacted ThinkTank after I received it and they gladly sent additional dividers for my specific needs at no charge.