Perfectly sized and equipped for single day missions, the new Sparta™ includes over 30L of cargo, laser-cut Mountain™ MOLLE and our new 3L, 100oz Mil Spec Crux™ Lumbar Reservoir, which delivers 25% more water per sip. Low Rider™ technology uses a lumbar reservoir to move the water weight low for increased stability and a lower center of gravity. It is constructed of 500D Double-Rip Cordura® fabric for long lasting durability.