Order yours now! Deliveries are expected to start at the end of May 2025. The Crux reservoir boasts a shutoff valve, easily operable with one hand. This updated version offers 20% bigger water flow, and boasts an ergonomic handle, helping hold the bag when filling. - Big bite valve selv-seals after each sip - Hydroguard technology inhibits bacterial growth in the tube and reservoir - Leak-free, large filler cap for easy use and washing, or chucking in some ice cubes Camelbak is a true hydration specialist, and for many endurance athletes the one and only brand to consider.