The Osprey Katari 7 Hydration Backpack keeps you hydrated on longer rides while providing room to stash snacks, tools, and more. It comes with a next-gen 2.5L Hydraulics reservoir for all-day refreshment, which slips into the external hydration sleeve for easy access. A magnetic sternum strap bite valve attachment ensures convenient sipping. An external, zippered, scratch-free slash pocket, a zippered front-panel compartment with tool organization, and dual stretch mesh side pockets offer handy storage. Blinker light attachment. This hydration pack offers a little more flexibility for gear without getting bulky. Comes with 2.5L Hydraulics reservoir that slips into the external hydration sleeve Magnetic sternum strap bite valve attachment External, zippered, scratch-free slash pocket Zippered front-panel compartment with tool organization Dual stretch mesh side pockets Blinker light attachment