or long run

and odor resistance combined with durable

Lightweight Insulation: Silk blend for superior warmth without bulk

Designed for breathability

28% polyester

Nathan | Pinnacle Insulated Soft Flask | 18oz | Sailor Blue/Reflective Silver houndstooth or long runMORE 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