Osprey Hydraulics Water Reservoir / Hydration Bladder (2-3 Liters)
How do you fit a hydration bladder in the Osprey Poco Child Carrier? If I'm hiking without my wife I can't really reach for a water bottle without setting the baby pack
Best Hydration Bladders of 2024 | Switchback Travel
Universal Water Bladder Insulator Bag for Osprey, Platypus and CamelBak Hydration Backpacks; 2-3L Hydration Bladder Insulation Sleeve - ...