Imprint Option: Silk Screen - Quench your thirst with this customized backpack! Our premier sport hydration backpack is designed to carry 1 liter of water to make hydration a speedy, effortless task. The bag was inspired by hardcore hikers, as features include additional pockets, a lightweight and breathable mesh harness and an over-the-shoulder-tube that provides for easy access to liquid refreshment. Ideal for sporting goods stores, corporate promotions, fitness centers or just a great gift for any hiker/outdoorsy person in your life. Survivor.