The Hydraulics LT hydration reservoir is lightweight and easy to use. To seal it, the reservoir is folded forward at its opening and then closed with the Slide-Seal, a sliding clip closure. This design allows for easy filling and emptying, as well as complete cleaning. The double-welded and angled chevron seams provide stability and a low profile. They also keep the liquid contained when you're navigating difficult terrain. With the magnetic bite valve, the hose is perfectly stowed and your drink is always accessible. When not in use, the bite valve features a simple twist closure system. The reservoir is made from durable yet lightweight TPU material, capable of handling boiling and freezing water. With the QuickConnect, you can easily remove it for filling, replacing, or cleaning.