S'well Stainless Steel Travel Mug, 16oz

If you're looking for a coffee tumbler that holds heat great, is easy to hold, is sturdy, can be opened and closed with one hand, is easy to clean, and provides a great drinking experience....look elsewhere. This one ticks SOME of those boxes, but not the most important: Drinking Experience and Heat Retention. First, the "good": The tumbler is sturdy, easy to hold, and is easily operated with just one hand. The lid snaps shut firmly and seals well enough to ensure that it's leak proof. Not so good: This S'ip by Swell tumbler loses 40 degrees (f) of heat in 2.5 hours. That's about average across the dozen or so tumblers I've tested. (The best is Thermos King with a heat loss of 31 degrees over 3 hours.) The lid is just one layer of relatively thin plastic ...which is where all the heat is escaping. The lid (the top 10% of the tumbler) gets quite warm to the touch. It's not going to burn you, but it's noticeably very warm. Drinking from the tumbler... because it's a flip top lid that does not have a "well" for the top to flip over into and get out of the way, the hot wet bottom of the open flip top gets pressed up against my nose when I try to sip from the tumbler. I don't want my nose coming into contact with that. The lip of the lid is about 1/4 of an inch thick. That's just too thick for sipping and results in more of "pouring" hot coffee into your mouth. If it were thinner it would be easier to sip from. Finally, it takes just a bit of fiddling to get the lid to seat properly when screwing it back on. For all those reasons I cannot recommend this tumbler. This particular Tumbler arrived in what appeared to be a new box, but the lid has a small dent as well as a little brown sticker. The paper wrapper on the bottom was taped closed as well. Those anomalies make me think that someone else got it before I did, and they returned it.