The latest hydration reservoir from VestPac is the result of years of testing and innovation. The made-in-USA materials are completely BPA-free and taste-free so your water tastes just like it should...clean. Our unique hourglass design distributes water evenly so your pack stays balanced. The ergonomic fill cap and bite valve have been redesigned as well so you never miss a sip. Do you ever have trouble finding the mouthpiece on you reservoir? Not anymore. Each bite valve comes with an integrated magnetic clip for easy access. Reservoirs are designed to fit in all VestPac models as well as any other hydration pack of 60 ounces or more.