You'll be cooler than everyone else in your office if you have this tumbler. Unless they have it too. Then those of you who have them can take over the office party planning committee.

• 20 oz tumbler
• Stainless steel
• Keep drinks hot for 8 hours
• Keep drinks cold for 16 hours

Science talk: 20oz double-wall 18/8 stainless steel copper vacuum insulated tumbler with a push-on lid. The vacuum insulated body and cooper-plated inner wall help retain the internal temperature of the tumbler longer (see above). The copper-plated inner wall can make a difference of 9°F/5°C over 24 hours and prevents heat from entering or exiting the tumbler by thermal radiation. Cool huh?