Osprey  Dyna 6 Hydration Vest - Women's - 1.5 Liters

Bought for my wife and she stays: Works exceptionally well. Everything stays firm, no flopping or bouncing, smart design on water system so no air bubbles. Very happy with it after about 20 miles of running.

I wasn't planning on forking over the $$$ for a hydration pack quite yet, but when I tried this on at my local REI, I had to have it. It is extremely comfortable and fits very well. No sagging, bouncing, pulling, rubbing...nothing. It has three different compartments and can hold a TON of stuff if you needed to pack it full. I love the pockets on the front strap for my iPhone. The magnetic fastener for the hose is genius. I will never take this back. I also tried on several other packs from Camelbak and Nathan. This was the winner by FAR.

I bought this a month ago and I'm not sure how I ran in the summer without it. I tried a few hydration belts (ugh so much chafing) and handhelds (ugh not enough water) before I found this vest. I love it! It fits great and has lots of pockets for whatever you need on a long hot run. I highly recommend it!

I got this pack to try running to work but I find myself using it for all of my runs as I stay more hydrated and don't have to carry anything around my waist. Absolutely would recommend. I'm small on top but it's very adjustable and the small/medium works great.

I took this pack out for the first time on an 8 mile run. I kept thinking to myself how thirsty I was, forgetting I had 1.5 liters of water strapped to my back. That is how comfortable and light this bag is. There was no chafing anywhere from the straps, and the water flowed easily. I'm rather busty (DD's) with broad shoulders and the S/M still fit great. Highly recommend this pack.

I tried a bunch of others, but this one fits well and is made well - the others were to scrunched up around my chest - I am small, can't imagine what a large-breasted woman would do!

I bought this pack due to a pack that sat to low on my back when mountain biking . Much lighter yet holds all items my other pack held .

I use for trail running, it rides very well and doesn't bounce. Plenty of room for goodies.

This is my first trail running pack, and I don't plan to get a new one anytime soon! The 1.5 L bladder is great for mostly everything I do (<= 4hrs). The best thing is all the pockets in the chest area. Even the open pockets are snug and secure -- great for easy access to gels and food on-the-go. The actual pack holds a decent amount, (ten essentials). If you're looking to spend less than $100 on a pack, this is a great one to check out.

I LOVE this pack! It has great stretch pockets up front, even pockets behind pockets, a decent bladder size, a great large pocket in back, and even side pockets for extra bottles or even your poles! It's actually a perfect trail running/racing pack. Just what I was looking for!