OutdoorGearLab

The REI Swiftland Hydro redefines the standard of introductory running vests. At an affordable price point, it's easy to use, highly adjustable, and capable of carrying a decent load. Our favorite things about this vest are the intuitive design; at no point do you need to contort your body or undergo an unnatural movement in order to tighten or adjust a strap on the vest. We love that the amount of gear storage permits you to get out for full-day adventures with the necessary gear and some additional layers or medical supplies if need be. Compatibility with both a hydration bladder or soft flasks &#40;not included&#41; add to the versatility of this do-it-all vest.  
For anyone considering trying out a hydration pack for running, but also considering using it for biking, hiking, rafting trips, or staying hydrated at festivals, look no further. With 5 liters of usable storage between a main blitz pocket, an external quick-stow pocket, and front chest pockets, you can bring most anything you need with you with this model. Vests as feature-rich as this one normally don't have such accommodating fits, as they are designed for race-oriented ultrarunners. The Swiftland Hydro is different. It has many high-end functional features for a fraction of the price.  

Running Hydration Vest Comparison