Discover the ultimate in temperature retention and durable design with our collection of Thermos Guardian Stainless Steel Tumblers. Engineered for outdoor enthusiasts, commuters, and everyday adventurers alike, these 12 oz travel mugs deliver top-tier performance with sleek, modern style. Crafted from premium stainless steel, they feature advanced vacuum insulation technology that keeps hot beverages toasty for up to 3 hours and cold drinks refreshingly icy for up to 10 hours, making them perfect for busy mornings, mountain trails, or city commutes. Designed with user convenience in mind, these tumblers include slide lock lids to prevent spills and leaks, ensuring your drinks stay secure during transit. Lightweight, dishwasher safe, and minimal in parts for easy cleaning, the Thermos Guardian Tumblers seamlessly blend functionality with reliability. Elevate your hydration experience with these versatile, stylish mugs ideal for coffee, tea, or water, and enjoy the durability and performance that define Thermos innovative drinkware solutions.