Update or replace your lumbar reservoir. This 2-liter lumbar reservoir is just like the one that comes in our mountain bike hydration packs. The 70-ounce design includes a wide mouth for easy filling and a high-flow valve for efficient drinking. - 2L / 70 oz Dakine x Hydrapak 3D lumbar reservoir - Blaster high-flow bite valve w/shut-off - Quick-disconnect tubing for easier refills - Molded 3D bottom provides better shape inside the pack - Molded 3D bottom for much better drying between rides

Update or replace your lumbar reservoir. This 3-liter lumbar reservoir is just like the one that comes in our mountain bike hydration packs. The 100-ounce design includes a wide mouth for easy filling and a high-flow valve for efficient drinking. - 3L / 100 oz Dakine x Hydrapak 3D lumbar reservoir w/quick disconnect - Blaster high-flow bite valve w/ shut-off - Quick-disconnect tubing for easier refills - Molded 3D bottom provides better shape inside pack - Molded 3D bottom for much better drying between rides

The Dakine 2L Hydrapak design of the Replacement Reservoir is engineered to be durable and easy to use. The Shape-Loc center baffle adds some rigidity to the shape of the bladder, which cuts down on shifting of water weight while you're in motion and makes for a more resilient design. Meanwhile, the wide-mouth opening and plug-and-play connecters make it easy to fill, drain, and clean. And, of course, it's BPA- and PVC-free.

The Dakine 3L Hydrapak design of the Replacement Reservoir is engineered to be durable and easy to use. The Shape-Loc center baffle adds some rigidity to the shape of the bladder, which cuts down on shifting of water weight while you're in motion and makes for a more resilient design. Meanwhile, the wide-mouth opening and plug-and-play connecters make it easy to fill, drain, and clean. And, of course, it's BPA- and PVC-free.