In a perfect world, hydration bladders would be drained, rinsed and air-dried every time you use them. In the real world, packs are taken off and tossed in the closet or backseat of your car until the ...
Water is heavy—one liter weighs 2.2 pounds, and four liters weighs almost nine pounds. Even the best-designed hydration packs or vests, waistbelts, or handheld carrying systems don’t make water any ...
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