"Play more and enjoy your freedom with the RIG 300M. The RIG 300M comes with a 2 liter reversible, top-rack dishwasher safe hydration engine backed by a lifetime warranty. 300 cubic inches of space, suitcase-style gear loading, and the addition of diagonal molle straps means you can carry your pressurized engine and all the essentials needed for a day trip with ease, comfort, and style.
The RIG 500 comes filter ready with a FREE Aquamira Frontier Max Filter Casing ($15 value). Customize your Frontier Max with any Certified Series IV filter to make the ultimate hydration system."