The Manta 24-liter is a premium hydration daypack designed to offer outstanding, fully-featured performance without compromise. Made to go the distance on your most committing hike adventures, it has loads of storage and organization, all packaged in top-tier sustainable fabrics. Its highly-ventilated AirSpeed™ suspension has been improved with a molded ladder torso adjuster and it comes with the next-gen Hydraulics reservoir. This version comes with an Osprey Hydraulics LT 2.5 Litre reservoir. Key attributes RESERVOIR INCLUDEDComes with an Osprey Hydraulics™ LT 2.5 L reservoir, dedicated sleeve and sternum strap magnetic bite valve attachment.AirSpeed™ SUSPENSIONA tensioned mesh backpanel keeps the weight off your back, enabling highly ventilated carrying comfort.RAINCOVER INCLUDEDBecause rain or shine, there's no excuse to not hit the trail. Stores in a zippered pocket at the base of the pack and made with bluesign® approved fabrics and DWR treatments made without PFAS.BODY-SPECIFIC FITManta/Mira is designed to provide a body-specific fit to achieve maximum comfort and stability across body types. Packs designated as Women's are best suited for shorter, narrower, curved body types compared to packs designated as Men's. Osprey Manta 24 Litre Men's Hiking Hydration Backpack / Daypack - with 2.5 L reservoir