If there's such a thing as the perfect pack, the CamelBak Rim Runner 22 2.5L Hydration Pack might just be it. This perennial favorite hits the sweet spot for day hiking, but it also feels right at home at outdoor festivals and lakeside picnics. 1150 cubic inches of storage capacity provide plenty of space for rain or cool weather gear, lunch, and all of your essentials. Eight exterior pockets - including cargo pockets on the hip belt - keep everything organized and easily accessible. The padded mesh back panel, shoulder straps and hip belt keep the air flowing while giving good support for moderate loads. An easy-to-clean 2.5L Crux Reservoir delivers free-flowing, drip-free hydration on demand. Completing the package is durable Ripstop Nylon, so you can be sure that this will be your adventuring companion for a very long time.