Stay hydrated on long hikes, grueling bike rides, and all-day shred missions with the Dakine Lumbar Replacement Reservoir. Its lumbar design keeps the weight in the bottom of the pack for a more stable feel when you're getting active. The wide mouth opening allows for easy filling and cleaning, and the Shape-Loc center baffle helps it adapt to different hydration sleeve sizes. Hands-free sipping is possible with the Blaster bite valve, and it has a shut-off option to prevent leaks.