I was so nervous about buying a hydration vest. I was worried about the fit and if I would be able to run with this. I am new to running and cycling (as well as triathlon) but I know I definitely need more water. Researched many different vests, watched many different review videos. The one vest and company that kept coming up with Orange Mud and this particular vest. I thought I'd give it a try. I've used it for trail running trail cycling, and road cycling so far and love it. It is very easy to use, easy to clean and holds all my junk so I don't have to carry a water bottle, which I hate! Highly recommend this vest!