1、Our BPA free replacement cap is specially designed to be compatible with Owala Freesip 16 oz, 24 oz, 32 oz, and 40 oz water bottles, making it an ideal replacement for lost or damaged original caps 2、This Owala Freesip replacement cap is equipped with high-quality silicone sealing pads, ensuring a tight and leak proof seal whether your bottle is full or empty 3、One-Button Operation for Easy DrinkingFeaturing a user-friendly one-touch design, this lid allows you to open or close it with a single press, enabling effortless one-handed drinking. It's perfect for workouts, office, school, hiking, cycling, or any other outdoor sports scenarios—no need to unscrew the lid or tilt your head back 4、Safe & Durable Material for Long-Lasting UseMade from high-quality, food-grade, impact-resistant polypropylene plastic, this replacement cap is BPA-free, phthalate-free, and odor-free. It won't release any harmful substances even in high-temperature environments. The included straw is also made from food-grade Tritan plastic, which is durable, heat-resistant, and compatible with hot and cold beverages 5、The replacement cover of Owala Freesip is easy to clean and maintain, and can be disassembled into multiple detachable parts (including silicone gasket and cover body) for thorough and worry free cleaning. Save you time and effort in daily maintenance