Hydro Flask Water Bottle – Insulated Stainless Steel – Non Spill, Leakproof in 21 Oz Black
$25.71
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Product description
TempShield Technology
Colder. Hotter. Longer.
Our unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.
Pro-Grade Stainless Steel
Pure and refreshing. Every time.
Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer — and the durable construction stands up to whatever life brings.
Proprietary Powder Coat
Comfortable and durable.
Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.
Hydro Flask Pledge
We stand behind our products.
All new purchases from authorized Hydro Flask retailers come with a limited lifetime coverage against manufacturer defects. Visit our official website for more information.
Standard Mouth Compatible Lids
Standard Mouth Flex Cap (Included)
Moves with you.
Strong yet flexible, the Standard Mouth Flex Cap is the perfect companion for spontaneous campouts, epic road trips, and everything in between. Made with stainless steel pivots and an easy-to-carry strap, this cap has Honeycomb Insulation to help keep your drinks cold for up to 24 hours or hot up to 12. Pair it with any of the Hydro Flask Standard Mouth bottles.
Standard Mouth Sport Cap
Sip. Refresh. Go.
From mountain trails to morning yoga class, the Standard Mouth Insulated Sport Cap lets you hydrate one-handed and on the fly. It’s the first insulated sport cap specifically designed to keep water in your Hydro Flask bottle ice cold, sip after sip.
Sport Cap is not intended for use with hot liquids and is not leakproof.
Hydro Flask 18 oz Standard Mouth w/ Flex Cap
Hydro Flask 21 oz Standard Mouth w/ Flex Cap
Hydro Flask 21 oz Standard Mouth w/ Sport Cap
Hydro Flask 24 oz Standard Mouth w/ Flex Cap
Customer Reviews
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Price
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Volume
532 mL 621 mL 621 mL 710 mL
Mouth Diameter
1.91″ 1.91″ 1.91″ 1.91″
Diameter
2.87″ 2.87″ 2.87″ 2.87″
Height
8.7″ 9.4″ 10.4″ 10.8″
Weight
11.3 oz 12 oz 12 oz 13.2 oz
BPA Free
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Fits in Vehicle Cup Holders
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Leakproof
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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.
13 reviews for Hydro Flask Water Bottle – Insulated Stainless Steel – Non Spill, Leakproof in 21 Oz Black
Add a review
$25.71
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.
Mama P –
Perfect bottle
Nicely packaged to prevent any denting. Water bottle is a nice color and will replace my 6 year old Hydro Flask. I love it that these bottles aren’t too heavy, yet they keep items nice and cold. They also are the perfect size for cup holders.
Medium Daddy –
Unparalleled performance
I recently purchased the Hydro Flask and I am absolutely thrilled with my purchase! This sleek and stylish water bottle not only looks great, but it also delivers exceptional performance. The double-wall vacuum insulation keeps my beverages at the perfect temperature for hours. Whether it’s a hot cup of coffee in the morning or a refreshing cold drink in the afternoon, the Hydro Flask maintains the ideal temperature with remarkable consistency.One of the standout features for me is its durability. The stainless steel construction feels incredibly sturdy, and it has survived a few accidental drops without a scratch. The powder-coated finish not only adds a premium touch but also provides a secure grip, preventing slips even when my hands are wet.I also appreciate the thoughtful design details. The wide mouth makes it easy to clean and fill, and it’s compatible with various accessories like straw lids and coffee flasks, adding versatility to its functionality. The leak-proof design gives me peace of mind, allowing me to toss it in my bag without worrying about spills.In summary, the Hydro Flask has exceeded my expectations in terms of performance, durability, and style. It’s not just a water bottle; it’s an investment in quality and a statement of conscious living. I highly recommend it to anyone seeking a reliable, stylish, and eco-conscious hydration companion. Cheers to staying hydrated in style!
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!!
RDK –
Durable and Handy, But Shows Its Battle Scars
I’ve been using this water bottle every day for over a year, and it’s still going strong! It keeps my drinks cold (or hot) for hours and is easy to carry around.That said, mine’s got quite a few dents now — mostly because I’m not the gentlest with it 🙈. So if you’re looking for something tough enough to survive daily use (and a bit of rough handling), this bottle’s a solid choice.Would definitely recommend if you want something reliable and long-lasting — just maybe don’t drop it as much as I did!
Stormy –
No straw water bottle
Perfect water bottle the lid is super leak resistant the color looks just as pictured in description
Zon P –
Wet works
I only buy HydroFlask products. I have many different versions and I love them all. They retain heat well or maintain coldness well. They are leak resistant. I love the design of the cap with the handle. The lid is robust and well made. They come in a multitude of colors. I favor the 20 oz water bottle size. It’s a functional product. I love the icon symbol too. I recommend any of this company’s products.
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