The Fixy cap is the easiest cap to use, period. No push or pull of the mouthpiece required to open and close. Integrated heart valve provides great flow, and a leak-free seal when not in use.
- Self-sealing Heart Valve delivers a high rate of flow with a 100% leak-proof design
- No push or pull required to open and close the Heart Valve
- BPA-free plastic made from 100% FDA food-grade materials.