IRON °FLASK Classic Tumbler 2.0 - Airtight Leak-Proof, Durable Stainless Steel Bottle - Double Walled, Drinking Cup, Hot & Cold Insulated Thermo Tumblers - Coffee & Water Travel Mug, 24 Oz

I wanted a big mug, which this is. It came with openable hole to drink from - this seals properly with no leaks, but I don't really like these regardless of brand (this one is absolutely fine if you like this sort of thing). But bonus - it came with a different cap with a hole to put a straw through. That's what I use to drink my coffee through - I don't have to open or close anything every time I reach for a drink. I really like the straw option. However, understandably, it does leak a little bit if you tip it over - obviously some comes out the straw itself, and a teeny bit comes out the hole you poke the straw through. But in all I love the straw option, but the other cap is great too if that's what you are used to. It keeps my coffee hot for a good while - a few hours. Also, it says do not put in dishwasher, but has not been a problem for me. The metal cup part goes fine in the bottom of the dishwasher and the plastic cap and straw have not had any problems in the middle rack of the dishwasher where all the coffee mugs and glasses go. It's great and I recommend it.

The construction, design, and materials of this are very high quality and worth the money. Keeps drinks cold or hot for a good long while, and being able to switch the tops is great. The only reason I had to return mine wasbecause I have weak wrists from carpal tunnel issuesand depend heavily on a lipped lid or handle to lift things. My grip isn't great, and the seamless lid designed meant I had to grip harder to hold the heavy cup with liquid in it. So I returned this one and will get it in the handle variety instead as a work around. I like that they have a lot of variety in sizes, shapes, and types, and that parts, such as straws, are replaceable. This was the first seamless lid type I'd ever gotten so it was me learning that via trial by error. Now I know and will get a handled one instead. It had nothing to do with the product and everything to do with my limp noodle wrists.

I purchased the 32oz IRON °FLASK Classic Tumbler 2.0 at the end of Feb. 2022. I have used this cup daily, but it doesn't hold a full 32oz. It holds a little less with ice. Only wash it by hand with a no scratch scrubber. I've dropped it a few times so the coating has rubbed off a little on the base only. I live in PHX, Arizona and we have very hot summers. I think this yr we had something like 52 days in a row of 110° or higher, it was brutal. Anywho, this cup is a MUST it keeps my ice water icey and the ice will last to the next day while I'm at home in the AC. I've also left my cup in the car in 116° for a few hours, the ice melted and the outside of the cup was warm, BUT the water was cold and delicious. I've used this cup for 2 AZ summers and I can't imagine summers without it.

I've had the 32oz Calacatta Iron Flask for a little over a month now. I never go anywhere without it. I love how long it keeps my water cold. It's very sturdy and doesn't leak unless you flip it over. But even then, it's much less than a regular cup would be.I don't have an issue with the straws like other people have complained about. I also haven't had any issues with the lid (I don't use this for coffee so I haven't used the coffee lid). The Calacatta is a smooth satin finish. It looks matte but has a slight shine that shows off the gold. It's beautiful. I also love that the 32oz still fits in my standard sized car cup holder.I fill it up halfway with ice and then add cold water. With that much ice, it usually fits about 18- 22oz of water. That ice will last up to 24 hours depending on how much you refill the water. I always refill with cold water to make the ice last longer. Keep in mind, water slushing around and frequent refills will melt the ice faster, but the water will stay cold for hours regardless.

I received my 32 oz. "Dark Rainbow" (pretty!) IRON °FLASK tumbler yesterday and feel compelled to write this review to encourage you to get your own NOW! I live in the sultry south where heat and humidity will turn your ice-filled glass into a watery drink within minutes. Initially, I bought this to use as sort of an "individual" ice bucket so I could refill the ice in my glass of tea without getting up every five minutes of a Prime-binge, especially any compelling thriller. Indeed, for the first night of having this beauty, that is precisely how I used it—and it worked perfectly. At the end of the night, I left ONE lone ice cube in the tumbler to see how it would fare. Twelve hours later, that solitary ice cube is only partially melted and still icy cold! The tumbler itself comes with two straws, and two lids: one for use with a straw and one flip-top for use with hot drinks (or if you just prefer to drink directly from the tumbler). Each top is very thick—I've never had a tumbler where the top is designed to also provide insulation. All-in-all, I am very impressed with the quality and functionality of this tumbler. I only write reviews when I am deeply disappointed with a product to serve as a buyer-beware herald, or am over-the-moon pleased and what to provide fellow shoppers to confidently purchase. Happily, this tumbler is the latter.I haven't tried it in my car's cupholder as yet, but believe it will easily fit there as well. Also, there was ZERO condensation when the cup was filled to the brim with ice and none when I checked that solo melting ice cube this afternoon. I love that I can place the cup on any surface without worrying about damage to the finish.NOTE TO MANUFACTURER: I still would like to find a mini-ice bucket (48-50 oz. would be ideal, and not more than 5" diameter) to use when I just want to drink from a glass, and don't want to haul out my big ice bucket. I am convinced that YOU are the manufacturer to create the perfect mini-bucket for a chair-side refill. I would gladly be your first customer. Thanks!