DUBUXW Insulated Coffee Tumbler with Flip Lid (17oz)

Yes, and this is actually one of the unexpected perks reviewers discovered — the 12oz size fits directly under a Keurig Mini spout. So you can brew a single-serve cup straight into the tumbler, screw on the lid, and head out the door. It's a great setup for a quick morning routine without dirtying an extra mug.

Very easy, according to reviewers. The wide mouth opening lets you get a sponge all the way to the bottom, which is a big advantage over narrow-mouth tumblers. The silicone seal on the lid is removable for thorough cleaning — tea and coffee residue can build up under seals, so being able to pop it out and wash it separately is a nice touch. Just note that hand washing is recommended; the exterior coating may not hold up well in the dishwasher.

Absolutely. The double-walled vacuum insulation works both ways — it keeps cold beverages cold just as effectively as it keeps hot ones hot. Reviewers confirmed it works great for cold drinks, and the leak-proof lid means you can toss it in a bag with ice inside without worrying about condensation or drips. The 17oz size gives you more room for ice if that's your preference.

The 12oz is the more popular choice among reviewers and fits more universally in cup holders and under Keurig machines. It's perfect for a standard cup of coffee or tea. If you tend to drink larger portions, the 17oz gives you more room — but be aware that one reviewer noted the actual usable capacity runs smaller than advertised (closer to 10oz of liquid space in the 17oz). The 12oz seems to be the sweet spot for most people.

It's ideal for daily commuters who want a reliable, no-fuss tumbler for their morning coffee or tea. The one-handed flip-top operation is great for drinking while driving, the leak-proof design works for tossing in a work bag, and the 12oz size provides nice portion control. It's also a solid pick for anyone wanting to replace disposable to-go cups with something reusable. It's less ideal if you need all-day heat retention or if you want to use a straw — the opening isn't designed for that.

Mostly, but it's one of the minor complaints. A couple of reviewers mentioned the silicone grip sleeve can shift out of position over time with regular use. It's not a dealbreaker — the sleeve provides a comfortable, non-slip grip when it's in place — but it may need occasional readjusting. The non-slip bottom also helps prevent the tumbler from sliding around on flat surfaces.

Look for three things: insulation quality, leak-proof reliability, and ease of cleaning. The DUBUXW checks all three — double-walled vacuum insulation keeps tea hot for hours, the screw-on lid with flip top is leak-proof when properly secured (15 reviewers confirmed this), and the wide mouth opening makes it easy to clean with a sponge. Size matters too: the 12oz version is great for a single cup, while 17oz works if you want more volume — though note that some reviewers say the actual capacity of the larger size runs a bit smaller than advertised.

Yes, and reviewers of this DUBUXW tumbler back that up. The double-walled vacuum insulation keeps hot drinks hot for 3-4 hours and cold drinks cold, without making the outside of the cup uncomfortable to hold. The outer wall stays cool to the touch even with boiling water inside, which is a big safety advantage over single-walled mugs. The trade-off is a slightly bulkier design, but the DUBUXW still fits standard car cup holders.

The best insulated tumbler depends on your priorities. The DUBUXW tumbler is a strong budget-friendly option — it uses double-walled vacuum insulation in stainless steel, keeps drinks hot for 3-4 hours, and has a leak-proof flip lid that works great for commuting. It's not going to match premium brands that hold heat all day, but for a morning commute or a few hours at the office, reviewers consistently say the temperature retention is solid for the price.

Double-walled vacuum insulation is the gold standard for keeping drinks hot or cold, and the DUBUXW tumbler uses exactly that construction. Reviewers confirm it keeps coffee and tea hot for 3-4 hours and cold drinks cold even longer. The stainless steel interior won't absorb flavors the way plastic double-walled cups can, so it works well if you switch between coffee and tea throughout the week.

The DUBUXW tumbler doesn't come with a built-in tea infuser, but its wide mouth opening makes it easy to use a separate basket-style infuser. Just drop in a stainless steel tea ball or basket infuser, add your loose leaf tea, pour in hot water, and let it steep. The wide opening also means you can easily remove the infuser when your tea has reached the right strength — no fishing around with a narrow opening. For tea bags, just drop them straight in.

The DUBUXW tumbler is made with stainless steel interior walls, which is generally considered one of the safest materials for hot beverages — no BPA concerns like with some plastic tumblers. One reviewer did mention a slight plastic taste, but that's uncommon and may be related to the lid rather than the steel body. Rinsing it well before first use is always a good idea with any new tumbler.