Slim Double-Wall Vacuum Insulated Stainless Steel Tumbler with Splash Proof Lid 20 oz

My son is working on a science project in which he's testing several different 20 oz stainless steel tumblers to see how well they retain heat. He is completing his experimentation today, and I had to write a review because this tumbler is drastically outperforming the others, including a Yeti. At the seven hour mark, the liquid in the Euposs is almost twenty degrees warmer than the liquid in the Yeti. Pretty impressive! I also really like the way the lid closes. I think my husband and I will be fighting over who gets to use this tumbler when the science fair is over : )

This 20 oz slim cup is just right size for my disabled bed-bound son to use. He only has use of one hand and can lean to one side to pick up and return cup from and to his bed tray. The lid with hole for straw fits securely enough for him to lift cup from its top. I only fill it half to make sure its not too heavy for him. We are satisfied with the purchase. Would recommend product.

I was looking for a smaller cup for coffee and this is perfect! It keeps my coffee hot for a long time, as it's suppose to and a lot easier for me to hold. The only thing I don't like is the lid. When the coffee is low, it seems to hold back the flow while drinking. But other than that, it's fabulous.

I tried to carefully read the description. From that, I ordered this mug with the belief that the mug portion, the stainless steel portion, would be dishwasher safe. Upon receiving the item and reading its description, I discover that the metal portion is NOT dishwasher safe! GRRRRR..... only the top is dishwasher safe..... Nice mug, but I guess there ISN'T a stainless mug that is dishwasher safe. Nuts. Here's their description. Note bullet#7:Main features:-Made with high-quality, 18/8 kitchen grade stainless steel.-Double-Wall Vacuum Insulated - your hot drink stays hotter longer and ice stays frozen longer (up to 24 hours!)-Sweat Free Design-BPA Free Lid with Suction for a Tight Fit-Exceptional Splash Proof Design - NO more worries about splash accidents-Fit in most car cup holders-Dishwasher Safe, excluding the lid.-Small logo - Our classic tumbler design is rounded and simple, adorned with only a small laser-etched logo in a modern typeface near the bottom, leaves you enough space to customize with your own stickers or keep it clean and minimal.

This is a great thermos! Want hot coffee for hours? First preheat the thermos with hot water for about five minutes, empty it, then put the coffee in. With the spill proof lid, it will stay hot a long time. I timed it yesterday and the coffee was still hot after six hours. Of course, it doesn't take six hours to drink 20 ounces , but this was a test. I ordered one for my daughter, but don't tell her.....it's a surprise! 😊

Under the description is says origon says USA. The cup says made in China. I bought this cup for that reason. The cup seems good, i use it for child beverages. The 30 oz cup lid opening is awkward, the slide cover hits your mouth and nose. The straw opening is better to drink out of. The 20 oz seems fine.

I purchased this product as a gift for someone that can't get up themselves in the middle of the night, but loves COLD water numerous times through out the night. She loves it, the water is still ice cold after 8 hours. The nature of the product eliminated the drippy glass from condensation. I added a Stainless Steel Straw to my purchase and it is perfect.

Lid leaks when cup is turned sideways. Meh