Hikers and outdoor adventurers all know one key truth: Never leave home without your gear. Made from ultralightweight compressible materials, the CamelBak Arete 18 Hydration Pack features a removable sternum strap and secured zipper pockets. The Arete 18 also includes a CRUX Reservoir with a standard exit port, delivering 20% more water per sip. With the CRUX's ergonomic handle and on-off lever, you enjoy easy refilling and don't waste liquids through leaking. A padded nylon back panel lets you comfortably carry the Arete 18 anywhere.