DaKine Flowlock Reservoir Nalgene 70 oz. (2L) – A must for any winter adventure, the DaKine Flowlock Reservoir Nalgene 70 oz. (2L) is an excellent choice when you’re looking to stay hydrated without lugging too much weight. DaKine’s Flowlock Reservoir Nalgene comes with Aquaguard and anti-microbial treatment to lessen the risk when getting your water from just anywhere. A quick disconnect system allows the resevoir to be disconnected from the hose for convenient filling. The DaKine Flowlock Reservoir Nalgene also comes with a tear resistant thermo-plastic elastometer material, just the sort of thing you need when on an adventure.