The DYLN Insulated Bottle is a 40 Oz, ergonomic bottle that alkalizes your water, increasing the pH up to 9+, and keeps it cold up to 24 hours. With DYLN® you can enjoy healthy alkaline water affordably in a reusable stainless steel bottle. Eliminate expensive single use disposable bottles and make your own alkaline water on-the-go! Includes a VitaBead Diffuser (315 refills) and Removal Tool.