Bite valve lid made of BPA-free food grade plastic, with a silicone gasket.
Fit all standard mouth 1.8" diameter water bottles. Leakproof. Simple and convenient for drinking on the go without having to use two hands, open a lid or tip the head.
Durable and easy to clean (hand wash only). Replace buying disposable water bottle and carry your own with you wherever you go. With this bite valve lid, staying hydrated becomes an easier task.