Nathan | Pinnacle Insulated Soft Flask | 18oz | Finish Lime/Reflective Silver Size:18 oz The lightweight cageless construction adapts

The lightweight cageless construction adapts seamlessly to your foot's movement

Rockered Geometry conserves energy and makes running feel easier

Frosted pile lining and intricate whipstitch details combine to create a slipper equal parts comfy and cool

which adapts to your foot for a personalized

Nathan | Pinnacle Insulated Soft Flask | 18oz | Finish Lime/Reflective Silver Size:18 oz The lightweight cageless construction adaptsMORE COLORS The Pinnacle Soft Flask Insulated 18oz Handheld is built for runners, hikers, and outdoor athletes who need effortless hydration on the go. Featuring Nathan's advanced Exo Draw soft flask technology, this handheld system provides a comfortable, grip free experience, allowing you to focus on your performance. Designed for longer lasting refreshment, the insulated 18oz soft flask keeps fluids cooler for extended periods, making it perfect