The HydraPak Shape-Shift Reservoir has a baffled design that cuts down dramatically on 'sloshing' but also has the ability to be turned completely inside out to make cleaning it considerably easier than what you'll find from most reservoirs. Constructed of durable, flexible TPU with RF-welded seams, the reservoir is BPA-free, PVC-free and naturally anti-fungal. It's dishwasher safe (top rack) and backed by HydraPak's incredible Beyond Lifetime Guarantee. To clean it, simply open the secure Slide-Seal top, detach the interior baffle, reverse the inside to the outside, rinse it, and let it dry.The integrated hose and angled Blaster bite valve offer optimal, leakproof flow. A Plug-n-Play connect system uses push-button technology to allow the tube to connect and disconnect easily to the reservoir, making refilling and cleaning that much more convenient. This also makes the system in-line filtration compatible (filters sold separately). The HydraPak Shape-Shift Reservoir is available in your choice of 2.0 Liter and 3.0 Liter size options.