STAYS HOT OR COLD: THERMOS vacuum insulation technology for maximum temperature retention of hot or cold beverages. Keeps your morning coffee or tea hot for up to 7 hours and iced drinks cold for up to 18 hours
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Your morning coffee deserves better than lukewarm disappointment by 10 AM. The THERMOS Stainless King 16oz travel mug uses vacuum insulation technology that keeps hot drinks steaming for up to 7 hours and cold beverages icy for 18 hours. Whether you’re commuting, hiking, or just need your coffee to survive back-to-back meetings, this mug maintains temperature without the sweat rings on your desk or scalding hot exterior in your hand.

Built from 18/8 stainless steel with a sturdy handle, this isn’t a mug that’ll dent after one drop or start tasting like metal after a week. The DRINKLOCK sealing lid actually lives up to its name—toss it in your bag without worrying about leaks. There’s even a built-in tea hook for tea bags or loose leaf infusers, and the whole thing disassembles easily for thorough cleaning. Dishwasher safe on the top rack means less scrubbing and more drinking.

Who Is This For?

This mug works for anyone tired of mediocre travel mugs that promise the world and deliver room temperature coffee. Commuters who need their caffeine fix to last through traffic. Outdoor enthusiasts who want hot cocoa on the trail or cold water during summer hikes. Office workers who brew once and sip all morning. Parents juggling school runs who can’t finish a hot drink in one sitting. The 16-ounce size hits the sweet spot between portable and satisfying—not too bulky, not too small.

Bottom Line

THERMOS has been doing this since 1904, and the Stainless King shows why they’re still around. It keeps drinks at the right temperature for hours, doesn’t leak, handles daily abuse, and cleans up easily. No gimmicks, just a well-made travel mug that does exactly what it promises. If you’re done replacing cheap mugs every few months, this one’s worth the investment.

  • “STAYS HOT OR COLD: THERMOS vacuum insulation technology for maximum temperature retention of hot or cold beverages. Keeps your morning coffee or tea hot for up to 7 hours and iced drinks cold for up to 18 hours”
  • “EXTREMELY DURABLE: High quality 18/8 stainless steel construction is dependable any time of the year for long treks or road trips to the wilderness or across town. Includes a sturdy handle”
  • “SWEAT-PROOF: Exterior stays cools to the touch with hot beverages and sweat-proof with cold. THERMOS brand mugs are dishwasher safe, top rack recommended”
  • “LEAK-PROOF LID: DRINKLOCK sealing lid is leak-proof when closed for peace of mind. Features a built-in tea hook that holds tea bags or most loose leaf infusers. Lid design is easy to disassemble and clean”
  • “SINCE 1904: THERMOS brand products have been making everyday life better, every time. Hot stays hot. Cold stays cold. Food and drinks stay fresh. The little things go a long way, so do we”