The Coldest Water Insulated Standard Mouth Cap, Patent Pending, was initially built for Professional Athletes in high-performing sports. We believe in taking cold water on the go wherever you are, whether you are biking, cycling, running, jogging, or going to the beach. This cap allows you to drink effortlessly with one hand. Simply flip the top, and drink water from it. Includes two straws, a straw cleaner, and a 2.0 lid. Customers may need to cut the straw to fit your size bottle. Upgraded to provide the best flow rates for your hydration needs.