Nathan SpeedDraw 2 Insulated Flask

FEATURES 18oz / 535 mL double-wall insulated and Hi-Viz SpeedDraw Flask with Push-Pull Blast Valve™ cap offers quick bursts of fluid and keeps liquids cooler longer Ergo flask with a new sweat-channeled, no-slip grip insert for an easier carry Integrated reflective print within flask & on hand strap offers 360-degree visibility ideal for low-light conditions Double-wall construction keeps fluids cooler 20% longer than other insulated bottles Fully-adjustable hand strap with chafe-free thumb hole that enables grip-free running Large, expandable, zippered pocket fits most smartphones, plus nutrition, keys, and small essentials Weight with soft bottle: 3.9oz / 111g