Drink clean water in the wilderness with the CamelBak LifeStraw Crux 2 Reservoir Filtration Kit. The baffled reservoir fits 2 liters while fitting conveniently in a backpack for easy travel. A 2-part filtration system removes bacteria, microplastics, chemicals and bad tastes, while HydroGuard technology prevents microbe growth. High flow and a self-sealing valve enable quick and easy hydration.