Math Teacher Tumbler 20oz - Insulated Coffee Mug with Straw & Lids - Perfect for School & Travel

20 OUNCE VACUUM TUMBLER - Holds 20 oz. of your favorite drink, keeping it cold or hot for longer. - Stainless steel construction will hold up on the lease, ranch, or worksite. - Double-wall vacuum insulation keeps cold drinks cold and hot drinks hot. - Powder coated then laser etched to reveal design 2X heat and cold retention compared to plastic tumblers. EASY TO CLEAN The large wide mouth of the tumbler is easy for cleaning. And it is absolutely not microwaveable. The lid is used to dust-proof, not for leak prevention. Obstal tumbler comes with a 100% Satisfaction Guarantee, if you have any problem about it, please contact us, we will respond to you ASAP! WALKING. RIDING. BOATING. WORKING. SLEEPING or LOAFING. No matter the activity, you want and deserve a tumbler that will keep your beverages hot or cold for hours. And that is what we wanted. So we tested the Nanook. First, we loaded it with ice, put the top on and let it sit. 24 hours later still plenty of ice. 48 hours later ice floating in water. It passed the test! Then we put in steaming hot water. 6 hours later still hot. 12 hours later still plenty hot. It passed the test! So you can rest assured that whether you are going on a long drive, blazing a new trail, working long hours or hitting the links, your beverage will maintain its temperature. We guarantee it. The double walled vacuum heavy duty construction insulates your drink against the elements. And the rubble-ringed secure –seal lid prevents spilling even if you drop it or knock it over. SATISFACTION GUARANTEED OR YOUR MONEY BACK. So Click the “Add to Cart” button now. The environment will thank you.

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Double Wall Vacuum Insulation: The coffee tumbler is double walled vacuum insulated. This technology keeps your beverage cold up to 12h or hot up to 12h. The double walled design prevents the exterior from sweating.

JUST THE RIGHT SIZE: Meets your morning coffee needs in one cup, all while keeping it piping hot or ice cold and fitting comfortable and conveniently in your hand or your vehicles' cup holders. It also fits under most soda fountains, so you can feel great while you help save the planet by using less throwaway styrofoam mugs.

DESIGN IN MIND: thinner design holds the same volume of liquid as other leading tumbler brands. Comfortable in the hand, the cup also fits snugly into your car's cup holders so you can keep two hands on the wheel. Additionally, Safety is top-of-mind, as the Tumblers are made out of non-toxic BPA-free plastics & 18/8 food-grade stainless steel.

FOR COLD OR HOT BEVERAGE - Double Wall vacuum-sealed construction giving you unbelievable insulation with the splash proof lid closed. Under normal temperature condition, test tells it can keep a tumbler of ice cake for 24 hours until the ice totally melt, or keep hot coffee warm for 6 hours