Perfect fit: Compatibility hydro flask straw lid wide mouth bottle and most brand, 12 oz 16 oz 18 oz 32 oz 40 oz 64 oz. The straws need to be cut to fit your other capacity water bottles.
Leakproof Rubber Ring: Our wide straws lid constituted of a thick waterproof ring, hight watertight. Don't worry about your hydro flask water bottle getting your backpack wet, no matter how you shake it.
Food Grade Silicone: Composed of silicone nozzle and silicone straw, The straw is tightly connected to the hydro flask lid. You don't have to worry about the air getting into the straw, making unpleasant noises.
Durable: You can replace your wide mouth straw lid at any time; two different styles are enough for your daily replacement. Silicone straws allow you to clean and sterilize them in hot water and don't deform easily.
Come with 2 Different Leakproof Straw Lid, 2 Silent Silicone Straws, 2 Cleaning Brush, 2 Thick Waterproof Ring.