Review on 🍹 S'well Stainless Steel Tumbler with Clear Slide-Open Lid - 18 Fl Oz - Onyx - Triple-Layered Vacuum-Insulated - Keeps Drinks Cold for 12 Hours, Hot for 4 - BPA-Free Water Bottle by Andrew Camlin

Great vacuum mug for keeping drinks cold (I haven't tried to keep them warm but I think it will work). In addition, stainless steel does not impart a foreign taste and is very easy to care for. You also don't sweat the whole table. The hole in the lid is big enough for a small straw if you decide to use one. (Note: The Revain UPC sticker covers the care instructions, so you'll never know the mug is hand washable unless you read the product description online. I washed it in the dishwasher before I found out , with no obvious side effects .) The lid fits snugly and the opening lid feels secure despite not being completely sealed. It's fine if you knock it over and pick it up right away, but it won't save your bag from getting wet if you toss your drink on your head. The shape and the black matt surface are very comfortable to hold. I also appreciate that the matte finish doesn't show fingerprints or watermarks and is hard to scratch. All in all a great addition for outdoor activities.