RichenZee Straw Lid for Stanley 40oz Tumbler

Perfect Fit for Stanley Tumblers
This flip straw lid is custom-designed for Stanley 40oz tumblers, ensuring a precise fit with no adjustments needed—simply snap it on and enjoy.
Secure Flip-Top Convenience
The stable flip lid opens smoothly and stays firmly in place, preventing bounce-back or accidental splashes while drinking.
Enhanced Leak Protection
An upgraded, thicker silicone seal delivers excellent leak resistance, keeping bags clean and contents secure.
Easy & Safe for Everyone
Designed for kids, adults, and seniors, the straw lid allows effortless sipping without tilting the tumbler.
Ideal for Everyday Hydration
Perfect for work, gym sessions, school, travel, and outdoor activities, making hydration easy all day long.