The Osprey Manta 24 Hydration Pack is a confidence-inspiring hike hydration pack adorned with a ton of quality features. It includes a two-and-a-half liter reservoir in its own dedicated hydration compartment with a hose port in the backpanel and the Osprey Hydraclip for easier reservoir hanging. Comfort is key with the highly ventilated trampoline-style AirSpeed backpanel, and more than four inches of adjustability in its harness so you can tailor the fit to your specific needs. Toss aside any fears of wet contents—the Manta comes with an integrated raincover that stores away when not in use. No time to dilly-dally? No problem. The Stow-on-the-Go holder lets you attach trekking poles to your pack in seconds, while zippered hipbelt pockets and mesh side pockets keep your smaller essentials within reach. It's an exceptional pack for long treks or long days of bird-watching in the backcountry.