Raydem 15.6" RFID Laptop Backpack, Black

First impressions: This is a nice looking bag. The straps are wide with nice thick padding, won't be easily cut, and I like the front strap to snap across the chest (wish it were a little longer). But this must either be Mary Poppins' bag, Hermione Granger's bag, the Barney Bag, or a general bag off holding because there's no way you can realistically fit that much stuff in this bag. Seriously, in the picture it looks like they've got a laptop, a couple of textbooks, and then some. I do like the secret pocket on back but realistically, the padding on the back of the bag is too thick. It's comfortable but it's as though the padding somehow makes the interior of the larger compartment seem smaller, like the padding bulges on theinside AND outside of the bag. The side pocket for bottles must be for bottles with a diameter of less than 2 inches. Anything bigger simply will not fit and it doesn't stretch either. The lock is decent enough and the charge port also works well with my portable chargers and cable. I like that it has multiple pockets, I just wish the main compartment and the bottle pocket were bigger.I'll post an updated review after my trip if I decide to use it.Update: As suspected, it was a struggle to fit items into the main compartment. Things that would have easily fit in my other backpacks were a tight squeeze in this one. I didn't want to force it so I carried a few of the things in hand. The straps were comfortable but the clasp in the front was pretty tight as I'm quite busty. The bag itself is not water resistant, there's actually a nylon cover similar to a large shower cap that you put on the bag but it doesn't fit well whilst wearing it. The security pocket was a nice feature but a tight fit, even fora small wallet/passport case. I was able to squeeze smaller water bottles in the side pockets. . . whenever the main compartment was half empty. Other than size, my main issue was the charger feature. It didn't work. Connecting my phone directly to the battery pack worked perfectly fine. But using the feature of the bag was unsuccessful. It's a nice enough bag but not nice enough for me to keep for future use.