IRON °FLASKIRON °FLASK Co-Pilot Insulated Mug w/Straw & Flip Cap Lids - Cup Holder Bottle for Hot, Cold Drink - Leak-Proof - Water, Coffee Portable Travel Mug - Twilight Blue, 32 Oz

I bought one of these (the 40z tumbler in green) because I was looking for a good insulated mug that was less expensive than the well-known brands. I've had bad luck with cheaper mugs before, but this time I hit gold. The other day, I wandered off and left my iced coffee in the back seat cupholder (ADHD be like that). I didn't check it again for a full 36 hours. When I noticed I left it, I took a sip, assuming it'd be warm and diluted. Nope! Not only was it still cold, it still had most of the ice in it!!! The build quality feels excellent, and it does something that a lot of cups like this simply can't pull off: The flip lid is both easy to open and close AND totally leakproof. Usually you get one or the other, but not both.Needless to say, after this I bought an Ironflask insulated water bottle for my workouts.

I gave this to my elderly mother as a gift, who is a hot tea drinker. Most of her tumblers in bought her for her tea would only keep things hot for a short time and even the knock off of "those other cups" were not doing their job, you're unable to locate replacement parts, and the lid on that cup (it wasn't tightening.) This cup came up on my feed and I thought about it for about 5 minutes before hitting the Add To Cart button. It keeps her tea extra hot for the entire trip, the twist lid for straw only use is geniusly designed... And it's even easy for me to clean because I can get my hand inside of the cup to remove any sort of stains that tea can leave. It doesn't say it's dishwasher safe, but it's just easy enough to hand wash. It's durable, as my mother has dropped the cup on the ground accidentally, and it only has a really tiny dent and two tiny scratches. (Which I inquired about a bumper/silicone boot for the 16 oz... They aren't available for it.) Outside of her Skechers, this was one of the better gifts I have given her, and I would definitely recommend this brand to anyone looking for a new cup. I definitely will be a return customer... Only other suggestion to them would be to offer a light orange cup, as I would buy sizes from 16 to 40 oz for myself.. (I also plan on another 16 oz for my mother, just as soon as she decides on a different color.) I am highly impressed, as was my mother.

It keeps my drinks quite cold for a long time. I can put ice tea in the cup in the afternoon and it will still be reasonable cold in the morning. It barely spills when I drop it and it doesn’t break (Hey, I’m clumsy, OK?). My only gripes are that it looks kinda platicky, which it is, and there is this 1” square logo situated so that every time a right handed person picks it up to take a drink, they bring that gold logo towards their face. Personally, I think it belongs on the other side of the cup. There is another logo that says “Iron Flask” running perpendicular from the base that looks nice and doesn’t bother me.

Serious fan of quality tumblers. I have several Iron Flasks in various colors and sizes, handles and no handles. This color combination is pretty. More importantly, this is a quality brand to purchase because it keeps beverages properly cold or hot. As a teacher, I don’t have time to be rummaging through my lunch bag for drinks. I just pour my tea or whatever I’m drinking that day in my tumblers right before I leave for work at 6:15am, and they keep cold through the end of the school day at 4:15pm.

I've had this for over a year now. I use it every day. It still keeps my water ice cold all day. The last one, from a popular brand, didn't do as well as this. With the other one, I had to fill the cup completely with ice before bed in order to still have ice by morning. With this one, fill it up a little over half with ice and most of it will still be there in the morning. The only issue that I have is that I recently noticed a crack in the lid on the underside. I've tried looking for a replacement but it seems Iron Flask doesnt sell just the lid.

I cannot say enough positive things about this cup. I got the Aurora color and it is the most beautiful thing I’ve ever seen. People never stop commenting on it. It keeps drinks cold forever. My ice is still in ice form 24 hours later. It feels like the drink never gets warm.But the best thing is how durable it is. I work with psych patients and at some point I heard a very loud bang while I was in another room. Came out to find it had been thrown violently by a patient against a concrete block wall. It has an almost imperceptible dent in the bottom of it that i wouldn’t have even noticed if I didn’t know what had happened.A few minutes later he’d calmed down and I said “So, uh, what happened to my cup?” And he replied “I’m really sorry ma’am. I picked it up to look at it because it looked like car paint and I just really liked it.”It’s cool. This stuff happens. But like, the guy was strong. It was a hard hit. And it stayed intact when most cups would have crumpled. And the guy who threw it even said he only chose it because of how awesome it looks. I’m in love!

Bought one for myself a couple years ago and love it! Bought this one for my husband and he’s loving his too. Filled it up with ice water early in the morning, left it in the car in the hot Florida sun, and it still had ice 4 hours later.