Nathan Pinnacle 18oz Soft Flask zero-drop available in Stone and Heather

available in Stone and Heather Black in sizes S–L

no bunching on long travel days or weekend trail time

A twist-front bodice and 4-way stretch performance knit move with you and hold their shape

and casual trail use

Open mesh panels vent heat aggressively — built for high-output efforts in hot

Nathan Pinnacle 18oz Soft Flask zero-drop available in Stone and HeatherBuilt for runners who want hydration that stays out of the way, the Pinnacle 18oz Soft Flask is our pick for vest wearing trail and ultra runners. Its tapered TPU body compresses as you drink, killing slosh and keeping your pocket tight. The high flow bite valve self seals between sips no drips, no fumbling mid stride. 18oz (500ml) tapered profile fits snugly in front vest pockets and waist belt sleeves without shifting or bunching on the move