Nathan Insulated Soft Flask - 18 fl. oz.
Designed to keep you hydrated on the move, the Nathan insulated soft flask provides big-time insulation for big-time thirst, keeping your H2O cool for mile after mile.
- 18 fl. oz. BPA-free soft flask with locking cap and bite-valve design keeps liquids from escaping while you run
- Support spine creates a superior hand feel and support for the flask as the water level decreases in the bottle
- Insulated design keeps fluids cooler 38% longer than non-insulated soft flasks
- Compatible with all Nathan hydration vests (not included)
Imported.View all Nathan Running Water Bottles
Liquid Capacity (L)
Liquid Capacity (fl. oz.)
18 fluid ounces
Fits In Cup Holder
Water Bottle Material
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