Select options Geigerrig Hydration Engine $48.00 – $49.00 This is hands down the best hydration system on the market. We have gone through numerous other hydration systems (will not name all of them), and the Geigerrig is the most durable and most practical. To keep it short, you can stand on this bladder with all your weight and it will not break, you have the option of pumping it up with air to pressurize it so you can drink easier, its easier to fill up, and you can turn it inside out to clean it in the dishwasher. The Geigerrig has won 2 “best new product of the year” awards at outdoor conventions in 2011 . The whole Eagle Team has ditched their previous hydration systems and all gotten the new Giegerrig. This thing is sweet! THIS PRODUCT HAS A LIFETIME LEAK WARRANTY!!!