I have a 32 oz that is perfect for my needs - gym, sitting in traffic, working at my desk, binging shows in front of the TV, etc.

I got a 40z for my friend's birthday as he drives for Uber full time and he loves that it helps him stay hydrated, easy to drink on-the-go, and he doesn't have to make stops at a drive-thru/gas station for liquids throughout the day.

So easy to clean! no nooks or crannies I have to work extra hard to get into. A straw brush for the straw and regular sponge for the rest is more than enough.

It's wonderfully splash-proof, i can dangle it from my hand as I walk and not worry about it leaking, I can lean it against the arm of my couch and not worry bout it leaking, etc. I also love the lupine color asit's very pretty and reminds me of a local wildflower, the lupine.

On a hot day ice won't keep long but the drink does stay decently cold for hours, which is more than enough for my needs. I don't need ice cold, just cold enough to be refreshing and this accomplishes that very well.

I have been an avid hydroflask user since I was in elementary school. I own probably around 15 in total. I’ve been though all the hoops with Hydroflask like getting a replacement for a old damaged bottle with their life time warranty and have always had great experiences with their customer service. I use my 32 ounce straw tumbler every single day for water (it’s discontinued now) so when I saw these came out I knew I needed the 40 ounce one. I waited over a month for them to come in stock as I had my heart set on having the pink one. It came in this morning in the mail after it being delayed and having a long wait. I was so excited but that excitement was quickly followed by some disappointment when I went to wash it. The lid isn’t insulated at all like my lid for all my previous tumblers is and honestly just feels like a cheep piece of plastic in comparison. Overall I don’t feel like it meets the quality of what I usually get with Hydroflask and for a $50 water bottle I kinda expected better. I still love it and I know I will use it everyday I just wanted to give that warning and feedback to Hydroflask that I was expecting a higher quality that matches the previous products.

I’m really happy with my tumbler. it fits in my car console. Say I buy a drink. Fast food cups can be flimsy and they can spill so I can pour that into my Hydro flask and be assured that it Will not spill in my vehicle and it will stay cold and stay Colder longer than it Does in t food cups. That’s the last thing you wanna do is spill a drink down into that console. It happened to me one time because they did not have the lid on their tight enough. The shift was never the same after that. And I was a big drink. The old guy looked at me and made a face while it was him. And then another time I got a drink in a defective cup, and I ask them to come out to my car with paper towels and fix that. I would always keep one of these in your car.

I love my Hydro Flask 40 oz. In fact I recently found that my original was not keeping my beverage cold and would frequently have the ice melt so I contacted Customer Service and they had me send mine in for replacement. I now have my new Flask and yes. . . . It keeps ice completely throughout the entire day and sometimes into the night as well. Seeing that I drink about 200 oz of water/tea a day, this allows me to keep from filling the Flask up constantly. ALSO, and this is a big deal, the Flask fit neatly in the cup holder of my '24 Volvo. I wont use any other brand!