Effortlessly drink from your water bottle with the ParaValve Insulated Straw Lid. Featuring a patent-pending dual ball valve system, this accessory uses one ball valve for the air and another for the liquid. This unique design ensures ParaValve doesn’t leak when it is closed and is easy to drink from when open. In fact, drinking from the lid is as easy, or even easier, than putting a straw into a glass. The ParaValve straw lid is compatible with most wide-mouth water bottles, such as Nalgene, Hydro Flask, CamelBak, Contigo, and many more. The ParaValve offers insulation, which will help keep hot drinks hot and cold drinks cold. Moreover, ParaValve’s double wall doesn’t sweat so it won’t soak your other belongings. Thanks to the two-finger rubberized handle, the lid is also easy to carry.