The Geigerrig Hydration Pack G4 125FL is a new product designed by the brand GEIGERRIG. This hydration pack features an in-line virus filter, providing clean and safe water for outdoor activities. With a sleek design and reliable filtration system, the Geigerrig pack is a practical choice for staying hydrated while on the go. Whether hiking, camping, or on a long run, this hydration pack is sure to keep you hydrated and refreshed.