Osprey Dyna Women's Running Hydration vestpack features room for extra layers, water and fuel for big days on the trail. Typical kit contents that the Duro will carry: water, keys, energy gels, food & pills, phone, gloves, hat, headlamp, extra layers, socks, gloves & hat, GPS, meal, jacket, rain gear. Includes 1.5-liter reservoir.

• Bounce-free stability
• Smart-pocketing keeps essentials within easy reach