Learn more about the Camelbak Pro Vest In December, I was looking a small bag to my weekly training. I was tired of carrying my much larger bag in every single of my runs when I essentially only needed my bladder and phone.The Camelbak Ultra vest piqued my interest because of its comforts, carrying capacity and of course, the price (and there was a sale on it during the marathon expo, YAY)! If you are looking to get a vest to train for a Marathon- Ultra marathon (specifically