I received this bag at no cost to me in return for my honest review. I am now writing my initial reactions upon receiving the bag, but before testing it in the real world. I will update this review and make a video once I have had more time with the bag.----FIRST IMPRESSIONS:The quality of construction and materials is very good, overall. High quality SBS zippers (similar in quality to YKK), tough grey nylon exterior, and very high quality "seatbelt" type nylon webbing used in the should straps and sternum strap. The bottom is some textured plasticized material that seems very rugged and waterproof. The remaining nylon fabric is purported to be water resistant, but I have yet to test. Back buckles and zipper pulls are of some non-magnetic metal with a chrome-like plating. D rings on the should strap seem to be of stainless steel. Other buckles are of good-quality nylon plastic. The "leather" straps on the back of the bag are actually "pleather." Probably of polyurethane. They are the one material that I think will eventually wear out quickly.Stitching appears generally very good, although it does not appear that they used techniques like bar-tacking for extra durability at handles and should strap attachment points. Interior material is black, slick nylon. A bit hard to see your gear inside. The pull out camera cube is pretty well padded, and comes with a number of velcro dividers. I'm still trying to best configure these dividers, but I can fit a Micro Four Thirds body with lens attached, and easily two other lenses. You can only access this from the left hatch, as the right hatch just opens to a series of pockets. The top compartment is accessed by lifting the top panel (that actually closes by magnets, even though it looks like buckles), and then by uncinching a drawstring. It's quite roomy up there. Enough space for several more lenses, a mini tripod, filter pouches, your lunch, and perhaps a light jacket and hat. Or, alternatively, you could probably fit a couple of small packing cubes with enough clothes for a couple of days of mimimalist travel with your camera and a couple of lenses. The divider between the top and bottom compartment is attached by velcro, and can be removed to access the whole interior of the bag. If so, it appears to be around 20-22L capacity, and could easily fit enough clothes for a week's worth of travel. There is also a well-padded laptop sleeve that fits my 13" laptop with plenty of room to spare.The shoulder straps are very well padded and quite comfortable. Sternum strap and adjustment straps for the shoulder straps have little elastic "keepers" to keep excess straps from flailing about. Nice touch there! Shoulder straps are contoured to go around your neck, and I found them to be quite comfortable, even when I loaded the bag up. A "real life" test will see how long the comfort lasts. The back padding is really thick, with a nice wide air channel in the middle. The pads have a nylon mesh over them to hopefully increase breath-ability. Again, a real-life test is in order. Finally, although there are tripod straps on the back, I doubt I will ever use them. I tried to strap on my Me-Photo Roadtrip (weighing only 4 pounds), and it seriously unbalanced the bag and made it uncomfortable. There is no way a full-sized tripod will attach comfortably. A Joby Gorilla Pod would probably be fine, and is all I would recommend strapping to this thing (perhaps you could strap your jack there, or a small yoga mat or something).My "First Impression" rating is 4/5 stars. It appears to be very good value for money.-----Stay tuned for an update after real-life usage!