This hydration system is very easy to use, install, and carry. I actually didn't know until i came back to write a review that it had an adjustable waist strap (yeah, you can laugh). This backpack carrys 2.5 liters of water, its extremely easy to figure out how to get water in and out of it, and when you run or sprint with the straps tighens the way they supposed to be, the backpack doesn't budge. I used to carry two canteens on my belt, and if you've ever done that, you know that you dont have a lot of water, and it moves around a lot when you run. the 2 pockets work well for carrying anything, though you can't really reach them while your wearing it. I put my wallet my cell phone in the smaller pocket, and i carry a small toolkit in the larger pocket just in case something needs fixing when i play airsoft. It took me a while to realize exactly how the water tube supposed to run up to your mouth, but only after a few minutes i noticed the loops and things to put the tube through so it stays in place.
You can use this backpack with or without a MOLLE system because it does have shoulder straps, but if you have a MOLLE system you can also use this backpack with or without the shoulder straps (not sure how secure it would be though). I would recommend this Hydration sytem to anyone.
nice interior, spacious pockets
Bladder works with little effort
Stays on you when you run, doesn't make any noise, and it doesn't move around and throw its weigh all over the place when you run.
Padded for comfort
you'll never run out of water again, considering it holds 2.5 liters... thats like 6 water bottles, I usually only drink 1 or two so its plenty of water for me.
Color went well with my woodland camo i have and the straps didn't get in the way of my vest.
I didn't have this when i started playing airsoft, it wouldve saved me a lot of trouble with the canteens :D
Rating: [5 of 5 Stars!]