On the Fly - Nalgene's leak-proof loop-top swings open wide to reveal a contoured, high-flow drinking spout that's easy to fill at the fountain or sink. One-handed push button for easy open/close; locking bail for ultimate insurance against leaks. Dishwasher safe. 24 oz.
- Tough and impact resistant
- Leak proof
- Dishwasher safe and won't retain odors
- BPA free