Fits in side pocket Nikon D750 + Nikon 1.7x lens extender + 70-200 VR lens (hardly works!) / With strong Velcro closure. The vented straps (all) are excellent. The back padding is also well ventilated. The lap belts take most of the weight off the shoulders - work VERY well. 2 more lenses and a Canon 6D with attached 70-300. The outer bag can be used with a small Osprey 1.5 liter hydraulic reservoir. but the bag as a whole will be heavy with it. Haven't tested the waterproofness yet but I think it's ok and this bag includes a rain cover. For reference, my height is 6ft at 150lbs, waist 32.
Canon Nikon Sony Panasonic FujiFilm Olympus Pentax DSLR Camera Bag, Evecase Large Vintage Canvas Messenger SLR Shoulder Strap Case - Gray
45 Review
Classic Camera Bag, Evecase Large Canvas Messenger SLR/DSLR Shoulder Case With Leather Trim, Tablet Compartment And Removable Insert For Mirrorless, Micro 4/3, Compact System, High Zoom Digital Camera
41 Review
Canvas Camera Case Bag With Shoulder Strap For DSLR/SLR Cameras - Black, Medium Size By Evecase
30 Review
Black Leather Headphone Stand: Universal Headset Holder For Gaming And More - SAMDI Product
42 Review