The items were good to have two of although one of the bags leaked after about a month, I was able to fix it, for someone who goes hiking all the time it is always good to have these things. However there is not much room for much else, its easy to throw a granola bar in their with good measure. Just don't overfill the water or your back side may end up wet if it leaks.
Got these for my Girlfriend and her friend and it worked well it's keeping her hydrated and happy at concerts
Great quality and size! Fits comfortable and great for biking or a short hike. I wouldn't use the whole system for longer hikes because of the weight but the bladder is great and you can remove it and put it in your back pack. Very cool design / colors as well! Love the fact that I can put my MP3 in it with a slot for the earbuds to come out - tres kewl!