The Lightning X 2.0 L Hydration Bladder System includes a TPU hydration bladder and insulated drinking tube with bite valve. Just fill with water (or the beverage of your choice), stick it in your pack, and you’re ready to go! Our hydration bladder has a large threaded cap opening that allows for easy filling, cleaning, and the ability to add ice. Similar models have a much smaller opening. The bladder is double sealed and has an auto-shutoff valve to prevent leaks. It also has a handle for easy transportation or for attaching to the inside of tactical backpacks and rucksacks. The drinking tube has an insulated sleeve to help keep your water colder for longer. Finally, this system has a quick disconnect tubing system that provides a better seal, and makes it easier to take apart, clean and store your bladder.