CamelBak is known for the hands-free hydration system. The CamelBak hands-free hydration system lets you continue your hands-on activities and yet allows you to replenish your body with much needed hydration. When using the CamelBak hand-free hydration system, your performance is improved as you are able to drink more fluids. CamelBak Women's Day Star 70 oz. Hydration Pack. Women’s Independent Suspension™ Harness curves with your body for a comfortable & stable fit. Velvetex™ lining on harness for ventilation & comfort. Ventilated Air Support™ back panel with 3-D Air Mesh pods. CamelBak Classic 70 oz. Hydration Pack. Easy to fill via external access to the OMEGA™ Reservoir. CamelBak Mule 100 oz. Hydration Pack. The M.U.L.E. ® offers the perfect combination of organized and overflow cargo options. Air Director™back panel with Air