Description Women’s-specific running vestpack with room for extra layers, water and fuel for big days on the trail. Includes 1.5-liter reservoir. The road ahead may be long, but you're ready. The Dyna 6 is a favorite choice for trail runners and racers who need enough room for extra layers and calories for big days. With 4 lower stretch mesh food/supplement harness pockets, a front panel pocket, and trekking pole/ice axe attachment, the Dyna 6 is ready for any adventure. Airmesh bodywrap provides maximum ventilation and stability control for all day comfort. Made sustainably with recycled materials and PFC/PFAS-free DWR. Features Hydraulics 1.5L run-specific reservoir included. Hydration sleeve includes direct-zip access and hose path for easy loading Two extra large stretch mesh soft flask/food harness pockets Four lower stretch mesh food/supplement harness pockets Front panel zippered compartment Stretch mesh front pocket for quickly stashing other gear Snap-in adjustable/removable dual chest straps for customized stability SIZING: Small - 26-29.5 inch torso circumference, Medium - 29.5-35 inch torso circumference, Large - 35-41 inch torso circumference For sizing, measure the widest part of the chest, just below the armpits Specifications Capacity: 6L Sizing guides: Osprey Women's Dyna 6 Running Vest