What we think
This version of the 18oz. Soft Flask is insulated along with the trusty Bite Top – perfectly compatible with ALL Nathan hydration vests. This bite valve helps liquids from escaping so you can keep yourself hydrated without the mess.
If you have a Nathan product, this is your back up flask!
- Size: 18oz.
- Insulated properties keep fluids cooler 38% longer
- Bite valve keeps liquids from escaping
- Works great with ALL NATHAN hydration vests
- Easy to clean
- Capacity: 18 oz/535 mL