Add this flip-top cap to your Hydro Flask bottle for easy one-handed sipping, and quick access to your drink.
- Made of durable, BPA-free polypropylene PP#5
- Rubber seal helps prevent sloshing
- Fits all wide mouth Hydro Flasks (sold separately)
Add this flip-top cap to your Hydro Flask bottle for easy one-handed sipping, and quick access to your drink.