Retractable Straw for Effortless Drinking: Enjoy the convenience of a built-in retractable straw that smoothly extends and retracts with ease. Perfect for drinking on the move, the straw of the insulated tumbler allows you to sip without tilting the cup, making the 20 oz tumbler with lid and straw ideal for drivers and travelers. Leak-Proof Cap for Worry-Free Travel: The secure lid design of the coffee travel mug ensures the straw stays clean and protected when not in use. You can store the straw-lid on the tumbler-lid when using the straw. Simply press and twist to store the straw into the cup. Our unique leak-proof cap is engineered to prevent spills and leaks, even when the insulated tumbler is inverted. Car Cup Holder Friendly Design: Designed to fit seamlessly into most standard car cup holders, this insulated water bottle sits securely without tipping over during bumpy rides. The slim yet sturdy design makes it the perfect companion for daily commutes, long road trips, or running errands. Compatible with a variety of vehicle models, it keeps hydration within easy reach. Durable Stainless Steel Interior: Built with high-quality stainless steel, the inner lining of the insulated coffee mug with lid resists rust, stains, and odors, providing a clean and long-lasting drinking experience. This robust construction helps maintain the temperature of your drinks, keeping them hot for up to 12 hours or cold for 24 hours. Enjoy fresh-tasting beverages every time, with no lingering flavors from previous drinks. Wide Mouth for Easy Filling and Cleaning: The wide-mouth opening of the travel coffee tumbler is designed for maximum convenience, allowing easy filling with ice cubes, fruit slices, or beverages of your choice. Tumbler with Lid and Straw 20oz, Stainless Steel Vaccum Insulated Tumbler, Spill Proof Tumbler with Retractable Straw, Travel Coffee Tumbler for Car Cup Holder, Leak Proof Tumbler Black