Review on 🏃 Nathan Men’s VaporKrar 4L 2.0 Hydration Pack/Running Vest - 4L Capacity with Twin 20 oz Soft flasks, Hydration Backpack Ideal for Running, Marathon, Hiking, Cycling by Darrell Shreves

EXCELLENT product. I did my research so you don't have to. On my 51st birthday I was running 51 miles and needed a reasonably good source of fluids. The surprise of this vest is that it has all the little storage spaces that you can use to store almost anything you need. This vest is flexible enough to add a bladder, which I did, or just use the included soft bottle for a much shorter run. Fits snug so you don't feel like it's bouncing. Well done. Don't buy cheap if you're seriously concerned about hydration. This is the one! For your health