Wide Compatibility: Designed to fit Hydro Flask 12 oz to 64 oz wide mouth water bottles and other brands with an outer mouth diameter of 2.44 inches. Ensure your bottle's compatibility for a perfect fit Innovative Flexible Handle: Experience effortless hydration on the go with our soft, flexible handle that accommodates three fingers. This design disperses the weight of your filled water bottle, providing comfort and preventing finger strain, making it ideal for active lifestyles Premium Safe Materials: Crafted from BPA free PP material, our lid guarantees pure, odorless drinking water. You can trust that this lid prioritizes your health while being easy to clean and maintain Exceptional Leak Protection: Enjoy worry free hydration! Our lid features a secure seal that prevents leaks, even when tilted. Keep your drinks at the right temperature while securely storing your bottle in your bag during daily commutes or gym sessions Tips: Please measure the rim of your cup before purchasing to make sure it fits 2 Pcs Replaceable Lid