Stay hydrated with the CamelBak Crux Hydration Reservoir, available in multiple sizes to fit your adventure. Designed for hiking, biking, and outdoor activities, this BPA-, BPS-, and BPF-free water bladder delivers 20% more water per sip with a high-flow bite valve that self-seals to prevent leaks. The ergonomic shape fits easily into most hydration packs, while the leak-proof cap ensures secure, mess-free storage. Made from durable, high-quality materials, the Crux reservoir is easy to load, refill, and clean—perfect as a replacement bladder or upgrade for your hydration system. Backed by the Got Your Bak Lifetime Guarantee.