Great cups! Keeps drinks cold all day, comes with 2 different sizes of straws, protective rubber bottom, and you can choose to use the straw or to drink directly from the cup. We were so pleased with these cups, bought 2 sets of them!

The ice will stay till the next day and they do fit into any cup holder in any vehicles but was expecting them to be a little bit smaller Easier to manage while you are driving.

I've bought at least 15 Reduce tumblers! 5 were gifts because we love them so much! We use the Reduce insulated metal lids on most of them. We have the older Big 50oz tumblers that don't fit in any cup holders but they are wonderful for big slushes! The insulated lids fit these & they are very hard to knock over. BTW- the insulated lids have NEVER leaked a drop! We don't have the NEW 50oz tumblers but I'd love to try them! But my husband won't be to happy if I buy more tumblers. Thank you "Reduce"

I used to buy 44 ounce styrofoam cups but have switched to these ginormous things. They are big, heavy, and just barely fit in my car cup holder, and were too for my school bus cup holder, but I've made it work by hooking the handle on something. So why the 5 star rating? My husband made me ice tea yesterday morning at 5:45 am, and when I finished late this afternoon, there were still 3 ice cubes left. I swear this holds my tea colder and longer than is possible by physical law. We have had 80s and 90s degree weather and it's stays cold all day and into the night.

My wife and I ordered a 2-pack of these cups for their larger size and ability to be used in cup holders. When the order arrived, one of the straws was cracked. No big deal, I emailed Reduce customer service, and after a few days of back and forth confirming information, I was advised that they would ship a replacement. Much to my surprise, they had mailed an entire new cup and not just the straw.

We were searching for a larger, insulated mug for a while before coming across this item. Something to upgrade the metal tumblers we'd been using but refilling too often. This mug at 50oz fixed that! Lots of pluses beyond that, though. The tapered bottom fits both the large and small cup holders in my Hyundai. The inner measurement markings aren't much use to me but are nice to have I guess. I thought the handle might be burden and kinda hoped it was removable, but it's turned out to be a non-removeable blessing, very durable and functional. Speaking of durable, the included straw is nice and solid with a larger diameter than most drinking straws. The bottom's rubbery grip is great, and I haven't seen the thing sweat a drop. I didn't clumsily knock it off the table this week-- no leaking, no dent! I've seen a couple concerns about the thermal time, but haven't had an issue with that. My water stayed cold, ice didn't seem to melt much water being in the car for several hours on a 100° day. It's held over overnight as well. Can't really confirm or deny the 50 hour claim as drinks don't last that long with me. But I can say at $15 a mug, both me and my girlfriend feel like this was a helluva deal!!!

Absolutely love them!

I love these tumbler's, I have many types for drinking tumblers but these at the best yet. !!! They keep water cold for days, I live in a desert area where 110 degree temps are the norm and more, and Ice has lasted for up to 18hours - I have tested it! They fit in my Jeeps cupholder! I have had no issues with leaking from the lid! The straw is a little bit big/wide, but its really no issue. I have recommended these tumblers to friends and one of them have bought a set!

Ice all day

The older version of these without the handles or colors were MUCH better. The handles get in the way, are not removable, and they changed the design of the bottom so that they are less stable. The old ones had flat bottoms without the bevel. They were also just plain stainless, so no paint to chip. Unfortunately it seems that Reduce doesn't make the old ones any more, only these. Buy the old ones without the handle if you can find them at a decent price......