💧 Stay cool, stay hot, stay unstoppable.
The Hydro Flask Standard Flex Cap Black 21 Oz is a premium stainless steel insulated water bottle designed for professionals on the move. It features double-wall TempShield insulation that keeps beverages cold for 24 hours and hot for 12, a leakproof Flex Cap for worry-free transport, and a sleek cupholder-friendly design. Dishwasher safe and built with durable pro-grade steel, it guarantees pure taste without flavor transfer and comes with a lifetime warranty—perfect for millennial managers who demand style, function, and reliability.
| Brand | Hydro Flask |
| Capacity | 21 Fluid Ounces |
| Color | Black |
| Recommended Uses For Product | Water |
| Special Feature | Cold 24 Hours, Leakproof, Dishwasher Safe |
| Age Range (Description) | Adult |
| Product Dimensions | 1.12"W x 4.37"H |
| Model Name | 21 OZ STANDARD FLEX CAP |
| Item Weight | 23.68 g |
| Theme | Sport |
| Material | STEEL |
| Number of Items | 1 |
| Pattern | Solid |
| Included Components | bottle, lid |
| Product Care Instructions | Hand Wash Only |
| Base Diameter | 7.1 Centimeters |
| Cap Type | Flex Cap |
| With Lid | Yes |
| Is Dishwasher Safe | Yes |
| Is Microwaveable | No |
| Is Oven Safe | No |
| UPC | 810497025680 |
| Manufacturer | Hydro Flask |
| Global Trade Identification Number | 00810497025680 |
| Item Package Dimensions L x W x H | 10.08 x 3.23 x 3.19 inches |
| Package Weight | 0.4 Kilograms |
| Item Dimensions LxWxH | 1.12 x 1.12 x 4.37 inches |
| Brand Name | Hydro Flask |
| Warranty Description | LIFETIME |
| Suggested Users | girls |
| Part Number | S21SX001 |
| Model Year | 2020 |
| Style | 21 Oz |
| Size | 21 Ounces |
| Sport Type | Track & Field |
N**N
Really nice
Really nice
C**
True to description
Love this bottle, it’s leak proof and value for your money
P**T
Great Flask
I've had many water bottles and flasks in the past, and I thought I would give this one a try since I've heard only good things from the brand. I got the 21oz size with a screw on top and I thinks it's a great size for short travels and such. If I were going on a hike or taking a longer trip, I would recommended getting a larger size. I really like the mouth, it's the perfect size and is comfortable to drink out of. It seems leak proof and it keeps your liquids cold for a while. I tested it since it claimed to keep things cold for 12 hours. I poured ice and water into it and left it sitting at my desk for 12 hours. It wasn't as cold as when I first filled it and all of the ice was melted after that long, but it still was a decently refreshing cold drink. I'm not sure how well it would do if left in a hot car, or left out in the summer but it would still keep things pretty cold for a handful of hours I'm sure. It gets a thumbs up from me. :)
R**N
Exactly what I ordered
Exactly what I ordered and in perfect condition.
C**C
My Husband Stole My Son's Water Bottle
My son absolutely loves his water bottle. So does my husband. I think I need to buy another soon. 😂 It keeps ice water cold for well over 12 hours. It's easy to clean, takes a beating, and easy to carry because of the handle. I don't think we're going to go to any other brand. We have coffee cups too. The customer service is fast and professional.
E**E
Nice and Fair Competitor to Yeti
I'm definitely a Yeti fan, but this bottle from Hydro Flask does give Yeti some competition. The dings would be I think it might actually get dinged if you drop it...it's not as durable as other reviewers have said. But lightweight is a nice trade off (Yetis can be on the heavy side). The plastic top is nice and it doesn't leak or sweat. The only thing I notice is you kind of have to learn how to properly drink out of it without spilling it on your clothes. Once you figure out that, you are fine. I would definitely buy it again and in different colors. It's a nice product overall.
J**F
Great Thermos
I own 4 of these and love them. One for the gym one for home and 2 for the go! Keeps liquid cold for a long time!!
R**E
These are excellent!
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Trustpilot
1 month ago
3 days ago
