







Stay hydrated with the Hydro Flask 21 oz Standard Mouth Bottle. With a comfortable, flexible handle, the reusable water bottle is leakproof with double-wall insulation to keep drinks cold up to 24 hours and hot for up to 12 hours. The insulated bottle easily fits ice cubes and is dishwasher safe. 24 hours cold. 12 hours hot. TempShield® double-wall vacuum insulation. Leakproof when closed. Won’t retain odor or leftover flavor. BPA-Free. Dishwasher safe. Easy to clean by hand or dishwasher. Stays clean and colorful. Not for use on a stove, in a microwave or freezer. Keep hot drinks out of the reach of children. Bottle fits all Standard Mouth caps and lids, including the leakproof Flex Straw Cap.
21 OZ BLACK BOTTLE: Fill and refill with the Hydro Flask Standard Mouth insulated water bottle with leakproof cap. With a comfortable, flexible handle, the bottle is easy to grab and take anywhere. Double-wall insulation keeps drinks cold up to 24 hours and hot for 12.
24 HOURS COLD. 12 HOURS HOT: The insulated water bottle keeps drinks cold for 24 hours and hot for 12 thanks to double-wall vacuum insulation. TempShield insulation is designed to be lightweight and efficient temperature retention, keeping contents ready to sip.
LEAKPROOF: Say goodbye to leaky water bottles. The Hydro Flask Flex Cap is leakproof when closed. Toss it into your bag without worry.
FITS CUPHOLDERS: The cupholder-friendly design means your bottle fits seamlessly in most cupholders. Designed for seamless cupholder cohabitation, it’s right at home on the open road, on the sidelines, in a pack or wherever you need to set your sips.
PURE TASTE: Durable pro-grade stainless steel ensures pure taste and no leftover flavor transfer. So, today’s water won’t have any taste of yesterday’s iced tea.
DISHWASHER SAFE: Easy to use and easy to clean, just toss the lid and bottles into the dishwasher. Designed to keep bright color, being dishwasher safe means your favorite Hydro Flask is always at-the-ready.
Hydro Flask Water Bottle – Insulated Stainless Steel – Non Spill, Leakproof in 21 Oz Black
$34.95 Original price was: $34.95.$24.81Current price is: $24.81.
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13 reviews for Hydro Flask Water Bottle – Insulated Stainless Steel – Non Spill, Leakproof in 21 Oz Black
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Kady –
Love hydroflask! Great quality even with daily use
My husband loves hydroflask and he needed one that seals well and travels easy. This worked perfectly. It fits in any cup holder we’ve encountered and the top hasn’t leaks on him so far. It gets daily use so the lid quality seems good. The color is true to the photos. His water stays cold all day and even longer. The handle on the lid means he can comfortably attach it to his backpack too.
desert lady –
Reliable Hydration Bottle
I’ve been using Hydroflask since the release. I believe it was 2009 when I purchased my first bottle. Hydroflask has gone through quite a few changes, design wise, changing ownership and adding products. It’s still my go-to hydration bottle. There are probably other bottles on the market equal to Hydroflask but it’s a brand I have found to be reliable. My water stays cold, it doesn’t leak and it can take an occasional drop.The 21oz fit easily into my bag and isn’t to heavy to carry if I’m holding it. I like the matte finish so it isn’t slippery in the hands. The lid quality is good and the handle is easy to grip and hold. A bottle brush fits easily into the bottle for cleaning and the “O” ring on the lid can be removed to scrub it and keep it from getting gross. Overall I highly recommended Hydroflask products.
SAGAR ADVANI –
Hydroflask is a no brainer. Buy now.
Perfect gift for Christmas. Perfect size. Bought this as I trust the brand and have bought numerous bottles from hydroflask before. It’s easy to use and does not leak. High quality. Dishwasher safe I guess. Let’s goo!!
Leo –
Hydro Flask Holds Temperature Well.
My nephew had a Hydro Flask that he put hot coffee in when he left Arkansas and he said the coffee was still hot when the got to Houston, no less than 7 hours. That convinced me to at least look at them. I got one on sale that was a pink color and have been using it. My friends laughed when they saw the pink flask, but when they saw that it worked so well, they wanted one too, but one of another color. It fits in my cup holder, is easy to clean and small and light enough to fit anywhere .
Sky –
Better than most bottles
As someone who’s always on the go, my Hydro Flask has become an essential part of my daily routine. The insulation is no joke—it keeps my water ice-cold during long training sessions and my coffee piping hot when I’m heading to early morning workouts. What really stands out to me is how durable it is; I’ve dropped it more times than I can count, and it barely has a scratch.The wide mouth design makes it easy to fill with ice or clean after a long day, and the sleek design fits perfectly in my gym bag or car cup holder. I also love how it doesn’t sweat, no matter how cold the contents are, which is a huge plus when you’re carrying it around all day.For athletes, travelers, or anyone who values convenience and performance, the Hydro Flask is worth every penny. It’s not just a water bottle—it’s an investment in staying hydrated and fueled no matter where life takes you
Arman Bekzatyan –
Beautiful design, great color, keeps drink cool, beware of shipping damages
I ordered 2 bottles in same color. First one arrived nicely but second one arrived dented so I had to return it. The following review is for the first bottle which arrived in good condition. I would give 5 starts but considering the second purchase, I give 4 stars since it was expensive but damaged. Gladly I could return it for free thanks to Amazon.I love this water bottle for its design and quality. Other bottles look super clunky and look like they are designed to be taken on an expedition though the woods. I use this every day for school and I love it. One drawback however is that the 24oz is not enough for me. I didn’t want to buy the 32oz version since it is very large, I went for the 24oz because it is slim and tall and fits in my bag. I wish they had a slim version of 32 oz one. Regardless, I am able to get through 1/2 of my day on 24oz then I have to refill a few times.Otherwise I love this bottle and can see it lasting me a very long time.One other thing to note is that it seems susceptible to dings and scratches, especially on darker colors. I would recommend buying the hydro flask bottle boot for protection and noise reduction when setting down.
Stormy –
No straw water bottle
Perfect water bottle the lid is super leak resistant the color looks just as pictured in description
megan o –
Keep drink cold
We love hydro flask. This is probably the 3rd one ive purchased. They keep drink cool for hours. This size fits perfectly in the car cup holder and easy carry.
Cider –
Nice quality, beautiful bottle. The cab has rubber seals, which doesn’t create noise when using, love it.
Raghdah Alzahrani –
روعه تحفظ البروده ومافيها طعم
Tommaso Olivotti –
Bellissima borraccia, leggera ed estremamente efficace. Tiene sia caldo che freddo in maniera TOP
Kevin Morales –
Excelente marca, puedes hacerle grabado láser
Catherene –
I needed to get me one that will fit my daily bag to work. I found this size and til now I am very satisfied. It keeps your drink cool for hours! When I put ice in it in the morning, it will stay there til night. I am a hydroflask user ever since, i left mine back home so I decided to buy one here. Recommended for drinking bottle