Customer Reviews Hydro Flask 40 oz Wide Mouth with Flex Cap 2.0

I received this bottle for Christmas and it was the best present that I have ever received in my entire life. I would recommend this bottle to anyone! It is quite large, but it holds so much water and keeps you hydrated! I bring this bottle to school with me filled with tea and it stays perfectly hot until the end of the day and the same goes for cold beverages! There is no doubt in my mind that you need this bottle. I could not be happier.

I bought this water bottle for my cross country and track seasons. The hydro flask keeps my water ice cold for hours. (Be careful when picking up water bottle by handle! My lid wasn't fully closed and came off and the bottle, fell on my foot.)

I have had my Hydro Flax for about 2 years or more. I love the 40 oz. It is perfect for kayaking trips and everyday use. I am contemplating on getting the 32 oz but I am afraid that it might not be big enough. I don't want to be out in the world and not have enough water.

I got this last year in a Cairn box and it sat unused for a long time. Today I was working on an Audubon Christmas Bird Count and our weather happened to be 0 degrees, with wind chill in the negative teens. I filled this up at 6am with heated water from my coffee maker and put it in my backpack. Container was never at all hot to the touch. I was out in the weather for 5 hours and even now 12 hours later back home the water is almost as warm as when I put it in - I think the only cooling has occurred during moments when I opened it to drink from it. Very impressive!

I have had this product for over a year now, and I could not be happier! The amount of water it holds has been useful for not only me, but also my family! We now own four hydro flasks in the family because of how cold they keep the liquid! I love my Hydro Flask. I wish I had "the boot" though because the bottom has gotten very scratched thanks to me dropping it all the time. I love it though!

This will keep ice water for almost 24 hours at room temperature. I use mine every day. Recommend getting the straw lid.

I bought my 40 oz hydroflask about 7 months ago and i have had nothing happen to make me not love it. I lost the gasket to my straw lid so i emailed hydroflask for a replacement and they asked no questions and held up to their warrant! Thank you hydroflask for your great water bottles and amazing customer service.

My original 40oz lasted quite a while but one day started sweating. I did the insulation test and it seemed to have lost its insulation. I filled out a claim and sent the bottle in. Within a few days a new one was on the way to my door.They gave me one of the awesome new colours and even the new lid! I have a couple hydroflasks (growler, 16oz, 32oz, 40oz)

My husband and I bought our Hydroflasks together. I have been drinking lots more water since I got it. I take it everywhere I go! It's so refreshing to constantly have ice cold water. I will be buying some more for gifts this Christmas.

We live in Southern California and my son goes to school in Arizona. We love the outdoors, and we embrace all the activities that come with living by the beach. My son has a 'Swell which he loves but the product line is limited. I love everything about the Hydroflask- from the wide mouth option which is very handy since I juice a lot, to the handle that makes carrying it very easy to the multiple size options. Since I juice daily, I love the fact that there is no residual odor left after cleaning it and I can opt to carry my water next time without a lingering odor. I left ice water in my flask and there was still some ice 48 hours later. You can't beat the product - lowering the price possibly could:) but I am a fan for life.

My father bought this for me on my birthday. This has kept water cold for over 12 hours. I have marching band practice for 13 hours on some days, and it's great to be able to go get a drink and have it be cold. It's also very light weight for its size, and I have no problem carrying it in my backpack.

I've had my Hydro flask for about a year now and I still consider it my favorite water bottle that I own. I work long hours in a hot kitchen and I can still have Ice in my Hydro flask from the time I fill it up when I leave the house all the way until I get home in the evening.

I take this to my outside volunteer job - and have the Wide Mouth Straw Lid - it's great when you're out and can't get to a constant source of water. This keeps the water SO cold, just how I like it!

I have been looking for an insulated water bottle to keep at my desk at work, and I've found the perfect one in the 40 oz. Hydro Flask. It doesn't sweat at all, the mint color is vibrant and beautiful, and, most importantly, it kept my ice water cold all day. There was still plenty of ice in there after a 10-hour workday. Using my Hydro Flask I actually drank over 40 oz. of water yesterday, with no urge to sneak a soda. I think it was because it always tasted so fresh and stayed ice cold. I will definitely be recommending this product, buying more as gifts, and maybe treat myself to another!

I absolutely love this hydro flask, I do black top for a living and even around the 400 degree blacktop my water stays ice cold!

My parents bought all of us kids a 40oz hydro flask and we all love it! As a mom on the go it's great to stick in my diaper bag and always have water on hand, for myself and my kids! So far we have nothing but great things to say about this product!

I was looking for a water bottle that would keep my water cold, and one I could use on the trail. I found this product on-line but purchased it locally. I bought the straw so I can hike and drink! it works great! I typically have to stop when hiking (and using a wide mouth bottle) to take a drink - but with the straw feature I'm able to just keep on walking. I put ice water in this sometime around noon, and sat in a really warm place most of the day. the next morning - I still had ice!!!! and the outside of the bottle didn't get all slippery with condensation - so I didn't fear dropping the bottle. the straw cap is nice, it has a loop where you can clip a carabineer onto it or just loop your finger into it to hold onto it. the 40 ounce is really large - but the only size they had at the local store (there was an empty spot where I figure the other sizes were - and were sold out). I've since ordered the 18 oz and feel it's a bit small - but good for work where I have access to water. I've ordered the 32 oz one as well - I'm sure that'll be nice for shorter hikes. these are a bit heavier (duh they're stainless steel) than the "usual" water bottles

This is my 3rd, this thing is a mini cooler to go, easily the best water bottle brand

3 generations of my family use and abuse the incredible HYDROFLASK! Warning: here's what happens though...we all now "have to" take our flasks with us EVERYWHERE and if we forget it at home? Drama! Must turn back and get it....must have Hydroflask! These flasks make it possible to hydrate with cold beverages anytime and anywhere. If you use ice, it stays as ice for 8hrs ,10hrs, overnight. I have the 21 and 40oz. The 40 is s must in the backback on motorcycle rides. It foesnt fit in auto beverage holder, normal though, its big-- but managable. Enjoy...it's worth the price.

I have been wanting one of these for a long time! I finally received one as a gift. I'm in love! Stays cold for days, love the fact you can get a wide mouth flask, it makes it so much easier for putting ice in.The one and only thing I don't like is the lid that comes with it. When you take a drink the lid flips back and hit's ya in the face. Besides the lid flaw, this thing it perfect!

I bought this at a Stand Up Paddle-board (SUP) shop, mainly because I've heard they are amazing. Well, I live in AZ and I filled my bottle up with cold water (store bought) and no ice, at 10:30AM. I was out in 100+F temps until about 2PM, and my water stayed as cold as it was when I put it in. This thing is amazing like everyone says. I also filled with ICE and water at 9PM - woke up the next morning at 10AM and the ICE didn't even melt. Unreal. I love it. I will buy more.

Just received my 40 oz flask and I absolutely love it! And I LOVE the new lid as well. I love being able to carry it with the handle and honestly, taking the cap off doesn't bother me like other people are saying. It's just like my 21 oz flask, so it really doesn't bother me at all. As long as it serves it's purpose and keeps my water cold, I'm happy! Love it Hydroflask you guys are genius!

I was in Gatlinburg and bought a 32oz standard mouth and love it. Could not be happier with it. A week later a bought a 40oz flex cap. As someone with a medical condition I get easily dehydrated. This is the first product that keeps my water cold enough till I return in the afternoon. I will defently be purchasing more products.

I bought my flask 7 months ago and I am still in love with it <3

I bought this a few months ago and I don't leave home with out it. It keeps my water cold for hours even in the Grand Canyon. I put stickers of everywhere I have taken my bottle and it is almost completely covered! I suggest the lid with the straw because it makes it easy to drink in any situation(including driving)