I spent a lot of time looking at bags and reading reviews before deciding to go with this bag. The selling point for me was it being water proof and, honestly, because of its "manly" camouflage look, lol.It has a vent hole in the top so when it says water proof i wouldn't go diving with it. I live in Florida and I needed to be able to hit the water rapid rides at the amusement parks around here.It is well constructed. Nice sturdy zippers and an easy accessible usb make-shift port (seen on the side in the one pic. It has a convenient pocket on the strap that i use to carry vape batteries but it can hold a little more. It would probably be great to hold my keys. There isn't a whole lot of pockets which is great for me cause i get my stuff lost when i have too many pockets. It has a nice pocket on the inside or back of the bag (whichever you want to call it) that i keep my wallet in. The pocket on the front fits my Galaxy S9 and a couple other things. The main pocket can fit my Fire 10 tablet tightly. I wouldn't get anything else in there. I use it mainly for my hat and odds and ends. There is a small zipper pocket that has the cable for a power pack and another for headphones. Both have a plug that inserts into the make-shift port for use on the outside of the bag.The strap is at its smallest and the bag sits on my lower back and I'm 6 foot tall. When fully extended it looks like a purse which if i were a female would be actually really cool.I really like this bag. I hope you find this review helpfulI used to take a full-sized backpack to work every single day. While there certainly are advantages to a larger bag, I realized that I usually don't need all that extra space. The bag is nice and small and light. Don't get me wrong, I will occasionally have to bring the full-sized bag, but when I don't this is my new go-to bag. It has enough space for my daily commute to the office and seems to be well built.I’m like 6.0 feet tall, the bag is near my hips. I prefer wearing the bag near my chest. It just needs improvement on the strap size to decrease a little more. The strap feels way to wide.Seriously this is a great product. You won’t regret buying it. The build is strong and the zippers are great. Good storage size which can fit most of the essentials and more. Good bag.It was good but I didn't like the straps. Could not get them straight enough to be comfortable. Great look though.The straps is kinda long but I got it adjusted, using it for Europe tripThe backpack/sling was not comfortable and ripped in the front lining of the pocket twice.I love this backpack but it was smaller than I expected.