Push-Button Lid: It is designed for an easy, one-handed drinking experience. The chug-lid design opens with the push of a button for high liquid flow and one-handed drinking Dust proof and Leak proof : The flip-down cover protects the drinking spout from dirt. Button lock prevents accidental opening of the leak proof lid. Rubber stopper with good air-tightness makes the water bottle better heat preservation and leak proof Quick Thirst Quencher: Wide mouthpiece allows maximum water flow. It is ideal for fast, easy drinking. And thanks to the 360° rotating carrying loop, you can easily keep your water bottle with you on the go and drink it whenever you want Compatibility: The lid fits perfectly HydroFlask wide mouth bottles. NOT for standard and narrow mouth water bottles. NOT for tumbler. NOT for growler Order with No Risk: The superior plastic construction is impact-resistant to survive accidental drops. BPA Free. Dishwasher safe Auto Flip Lid for Hydro Flask Wide Mouth Water Bottle, Great Spout Lid for HydroFlask, Replacement Lid with Button Lock, ArmyGreen