Great Water Bottle for Running
591846
So I really don't like holding anything while I am running, especially when I am running long distances (more than 6 miles).  But, since I live in Texas, and with the heat that comes in the spring/summer, a water bottle is a necessity.  This Ultimate Direction Fastdraw Plus Hand-held bottle gets the job done.  It's lightweight, easy to hold, and I can freeze my Gartorade, so it becomes a slush.
4231060
I use this at work and at the gym, it is easiest the nicest water bottle I have ever owned. Above all else it is stylish, the pour is perfect and the quick snap cap is a real nice feature for me since my hands get rather dirty at work and that way I don't have to worry at all about drinking anything I may be working with. I've had mine for about a week now, payed full price and couldn't be happier with it. I haven't used it in mid run, nor have I carried while running since I use a treadmill. So I won't speak on that. But for all else I highly recommend this water bottle and urge you to at least consider it for running. I will update my review when I have ran with mine
3475099
This has been such a great running accessory for me. Holds my key, iPhone, and FlipBelt water bottle, doesn't shift around, and is well made!
3719344
This style of hydration pack is awesome because you can use the hand pump to add pressure so that the drinking hose will squirt water. Makes it much easier to drink while running a race.

I will say that I wish I had gotten the next size up. This bag is very minimal, and doesn't have much in the way of storage. So if you're looking for a place to stash a windbreaker, energy gels, protein bars, etc, then you will probably need to figure out somewhere else to put them.

The hard shell did a great job of protecting the 2 bladders while I ran a Spartan Ultra Beast in Tahoe.
2072604
Great product! There is no bounce when running, so it doesn't annoy me on my long runs. The pouch is very snug with an iPhone 6 in it, and it does rotate a bit on my hips when I freeze the water bottles beforehand, but I definitely prefer it over running with a backpack or handheld water bottle. I wish there was a larger water bottle option. 20 oz of water only gets me so far in the summer, so I have had to plan my routes around working water fountains to make up for it, but it's worth it since backpacks usually annoy me on runs.
1038291
Great hydration belt for the price. Easy to put on and stays in place while running. Bottles that are included do not slide when filled up
2599676
I LOVE THIS THING! Honestly, I was super nervous about having anything in my hands while running. I run with my dogs attached to a hands-free belt system and I was scared of not being able to grab their harnesses if I needed to. The beauty of this water bottle is that you still can kinda use that hand for such a thing. I bought this for my first 10K (I know, it's not as amazing as a marathon or anything, but I'll get there...) and it worked AWESOME! The race cap was great! I've ran longer distances not in a race setting and I'm telling you that I didn't know what I was missing. Running and staying hydrated makes running soooo much easier! I have small hands and I was also worried about this thing weighing my hand/arm down, but it is perfectly designed so that you barely notice it there even when it's full and has your phone in the pocket. Also it is SUPER easy to switch hands while running. As some reviewers have said, there was a plastic-y taste in the beginning but after using a bottle brush and some dish soap on it you won't taste it anymore. LOVE LOVE LOVE this thing! Can't wait to use it on my next run!
2188219
I run long distances and this particular style works best for me.  I have the fanny pack kind too but i don't like how the bottle bounces up and down when i run.  The fabric of this thing doesnt blister your hands like my other water bottle with a handle did.  I reccommend.
951952
These are great. They fit most any bottle I would carry, and are so much more cost effective than the bottles w/ straps that you pay $$ for at the running stores.  I like that I don't have to grip the water bottle while running.
1068541
This is the first time for me using this type of product, but it was just what I was looking for. As a beginner runner this product I feel helped me to run farther than I had before. I am no longer holding water and can freely move my hands to achieve better rhythm as I jog. Up to 6.5 miles now compared to 3.5 - 4 miles just a month ago.
  The water bottles are a good size for short distance runners like myself, however you really have to insure you close them tightly after use. But they do slip nicely in and out of the holders so it isn't too hard to get a sip while running with a little practice.
  The pocket is really nice for a small phone and chap stick. Has a lot of velcro, so a little tough to open while running but I keep an extra napkin inside and that helps to keep it from being as hard to open, and with time I am sure will get easier still.
  Sizing I think is pretty good. I am a little larger than I am usually, with a 38 inch waist and I got the medium, but I wear it a little lower on the hips. With the velcro that holds nicely I could have been maybe a couple of inches larger and still been able to wear it and it will shrink with me at least 4 or five inches.
  Another nice thing that sold me is it fits snuggly and does not move or bounce around as you run. The bottles are kind of flattened out so they are not in your way. They don't hold much, about 1 regular bottle of water fits into both bottles divided.
  I would buy again and would recommend to anyone! Specially if you were looking for a pink colored one that is functional and pretty.
3910153
As a Houston runner who trains year round I have been looking for a better hydration solution than the constrictive FuelBelt, or hand-held water bottles which hinder the natural running motion. I then tried Simple Hydration's water bottle after seeing its positive reviews on Amazon, and am glad I did as I love it!

Its unique feature is that it rests on your running short's rear waistband, and nestles between it and the small of your back, thereby requiring no supplemental belt and leaving your hands fully free. As its 14 Oz. total weight is near the body's center of gravity it is barely perceivable, feels comfortable, and you can rest easy as it is BPA free and is top shelf dishwasher safe.

In summer months I like to freeze my water bottle before my runs. With the Simple Hydration bottle it nicely cools the small of my back while gradually thawing its contents, providing a wonderful cold drink of water which lasts me perfectly on my typical mid-week six mile training runs. If similarly used with ice versus water I recommend: 1) Not filling the bottle fully with water before inserting into the freezer the night before to accommodate the expansion of ice and prevent possible damage to the bottle; 2) Placing a thin sock around the bottle to protect the skin while providing insulation to keep the water cool longer.
2656472
I have been using this while running outside, the bottle does not leak...however it is hard to get a tight fit and there is some bouncing which is minimized if you do not fill the bottle to the top.
2587873
I purchased this running belt because I needed something that fit water and had a pouch big enough to fit my phone with a case on it because the case is hard to take off. The zipper pouch fit my phone (iPhone 6s with an OtterBox defender case on it) and still has room to fit keys and other little things that one might need to carry when hiking or running. I haven't quite figured out what the outside pockets could be used for but they might come in handy in the future. It came with two 10-oz water bottles and from what I can tell water doesn't leak out of the cap. It is comfortable to wear and fits nicely on the back or on the stomach and doesn't get in the way of my arms in either position.
3560767
This works great to hold your phone while running. The waterproof areas are awesome for keeping sweat or rain from getting on your phone. It also is surprisingly responsive through the thick plastic covering. I love the side pickets for chapstick and keys, and it has plenty of room for anything you might need while running.
602820
Works as expected carries the right amount of water for a quick (3-5 mile) run, and insulated well enough that it stays cool the whole time without freezing your hand.
4123679
I got this water bottle belt last summer and have been using it almost daily for nearly a year.  I have been doing a lot of long runs and having water with me that i don't need to carry in my hands really makes a difference.  I also love the pocket which holds my phone which is a good safety thing when running alone.  Highly recommend.
1043596
This has become my favorite hydration solution while marathon training in the 90+ degree and humid weather of the Midwest. I also have a handheld water bottle and a waistbelt that holds 2 bottles but prefer this, especially since I tend to drink a lot of water as a "salty sweater". The front pockets are handy for gels and route directions when I run with my running club. I can fit my phone in the back pocket. I also carry a canvas folding water bowl for my dog in the back pocket, and am able to use that to give him water from this at water breaks as well. I also run with a belt that I can connect my dog's leash to, and this doesn't get in the way.

My one minor critique is it feels as if it rubs on my right shoulder a little bit. I haven't gotten any skin burns from this, it doesn't hurt, just that I "notice" it - but barely. It doesn't annoy me enough to stop me from wearing the product however. If it helps, I am a 5 ft 3 inch female and currently run about 45 miles/week on both roads and trails. The longest I have worn this vest so far has been just over 18 miles.