Kayaking is thirsty work, but you'll never miss a beat thanks to this handy Tributary Hydration System from Kokatat.  This 1.5 liter resevoir is perfect for long day trips in the sun and easily attaches to almost any Kokatat (and many other brands') PFD giving you an easy, hands-free way to stay hydrated on the water.  Reflective tape on the rear of the Tributary Hydration System helps improve visability, while Kokatat's legendary quality construction gives outstanding durability and toughness to this convenient accessory.  You can also check out the Tributary Hydration System on the Kokatat website here.