Geigerrig Rig 300 Hydration Backpack in Ocean Blue The Geigerrig Rig 300 Hydration Backpack in Ocean Blue is a top choice for outdoor enthusiasts looking to stay hydrated while on the go. Made by the trusted brand GEIGERRIG, this hydration backpack is designed for backpacking adventures. The stylish ocean blue color adds a fun pop to your outdoor outfit, while the practical features ensure you have easy access to water during your hikes. Stay hydrated and enjoy your time in nature with the Geigerrig Rig 300.