Nathan Pinnacle 18oz Insulated Soft Flask Size:OS Durable rubber outsole built for

Durable rubber outsole built for road surfaces and everyday mileage — holds up through high-volume training blocks

Founded in Hawaii in 1979 and located at the base of Mt

Built for cold-weather output — trail runs

so spills and light snow won't end the adventure

Nathan Pinnacle 18oz Insulated Soft Flask Size:OS Durable rubber outsole built forBuilt for runners and hikers who carry their hydration in hand, the Pinnacle 18oz is our pick for hot weather efforts where a cold sip actually matters. ExoSpine technology keeps the flask from collapsing in your grip, while double wall insulation holds fluid temps longer than a standard soft flask. The mesh strap and built in pocket round out a clean, no fuss carry. 18oz (535mL) capacity with double wall insulation keeps fluids noticeably cooler