TYESO Tumbler with Lid, Leak-Proof, Vacuum Insulated, Large Capacity, Stainless Steel Thermos, Water Bottle, Coffee Cup, Direct Drinking, Portable,

Leak-Proof Design: Our 600ml and 750ml high-quality stainless steel tumblers feature an innovative leak-proof design with an internal sealing ring, ensuring safe drinking on the go. Take the hassle out of travel with this tipless tumbler. Easy to Clean: Our flip-top tumblers feature removable lids for hygienic cleaning. Whether machine-washed or hand-washed, this tumbler's design is incredibly convenient. Excellent Insulation: Our tumblers offer superior insulation to maintain your beverage's temperature. Filled with 100°C boiling water, it will maintain a temperature of over 66°C for six hours. Filled with 0°C ice water, it will maintain a temperature of below 5°C for 12 hours. Perfect for keeping your beverage at your desired temperature! Versatile and Practical: The tumbler's wide, rounded mouth is not only suitable for direct drinking, but also doubles as a large-capacity insulated cup for hot or cold beverages. Perfect for coffee lovers and outdoor sports enthusiasts. PERFECT GIFT CHOICE: This stylish and practical flip-top tumbler makes the perfect gift for friends and family, perfect for birthdays, holidays, or anyone who appreciates high-quality, practical beverages.