Review on Stainless Resistant Insulated Comfortable Shatterproof by David Miller

Double-walled steel mugs are the most beautiful thing in the world. I have several different bottles: a hydro bottle that keeps the water ice cold for at least 24 hours, a fake Yeti mug that keeps the water cold at least overnight, and another bottle of a different brand that keeps the water cold for most of the day keeps cold. . I bought these mugs for coffee because I don't like my tall Yeti style mug (it doesn't fit under a Keurig). I tried some ice water before bed last night and when I woke up to drink some water about 3 hours later, the water was warm. I used it for coffee this morning and it didn't keep my coffee warm any longer than a regular ceramic mug. It's a cute mug and I'll keep it, but I'm very disappointed in it compared to other metal double wall mugs I've had.