Lowepro Pro Trekker BP 550 AW II / LP37270-PWW

Quick overview from the supplier:

Ruczac Lowepro Pro Trekker BP 550 AW II-Grey Fits 2-3 Pro Mirrorless/DSLR with 400mm, 4-6 lenses + 2 flash MaxFit divider system for maximum capacity & snug protective fit Space for 15'' laptop, 10'' tablet, plus Wacom type tablet 2-piece modular system meets standard carry-on requirements All-day comfort: ActiveZone back panel, load bearing waist belt 56035372704