Nathan Pinnacle 18oz Insulated Soft Flask Size:OS The 70/29/1 cotton-poly-spandex blend gives

The 70/29/1 cotton-poly-spandex blend gives you real stretch and breathability

Durable rubber outsole built to handle pavement and everyday mixed terrain

PROFLY dual-foam midsole pairs a soft top layer with rubberized foam beneath for cushioned landings and a propulsive toe-off

the Cloudsurfer Trail is our pick for women logging miles where the pavement ends

vegan construction with recycled materials built in

Nathan Pinnacle 18oz Insulated Soft Flask Size:OS The 70/29/1 cotton-poly-spandex blend givesBuilt 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