Hydro Flask40 Oz Wide Flex Cap Black
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Hydro Flask40 Oz Wide Flex Cap Black

4.7/5
Product ID: 183410718
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Details

  • Brand
    Hydro Flask
  • Capacity
    40 Fluid
  • Color
    Black
  • Recommended Uses For Product
    Water
  • Special Feature
    Cold 24 Hours
🔒Leakproof Seal
🔥12H Hot Hold
❄️24H Cold Lock

Description

💧Hydrate like a boss—cold, hot, and leakproof, all day long.

  • SIP HOT STAY WARM - Enjoy your coffee or tea piping hot for up to 12 hours—perfect for long workdays or weekend hikes.
  • STAY CHILL ALL DAY - Keeps drinks icy cold for a full 24 hours with TempShield double-wall vacuum insulation.
  • EFFORTLESS CLEAN UP - Dishwasher safe and built to maintain vibrant color, making hydration hassle-free and stylish.
  • PURE TASTE EVERY TIME - Pro-grade stainless steel prevents flavor transfer, so your water tastes fresh, never stale.
  • ZERO SPILLS ZERO STRESS - Flex Cap’s leakproof design means no more soggy bags or unexpected messes on the go.

The Hydro Flask Wide Flex Cap 40 Oz is a premium stainless steel insulated water bottle designed for professionals who demand durability and performance. It keeps beverages cold for 24 hours and hot for 12, features a leakproof Flex Cap, and is dishwasher safe for easy maintenance. With a sleek black finish and lifetime warranty, it’s the ultimate hydration companion for busy, style-conscious adults.

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Specifications

BrandHydro Flask
Capacity40 Fluid Ounces
ColorBlack
Recommended Uses For ProductWater
Special FeatureCold 24 Hours, Leakproof, Dishwasher Safe, Hot 12 Hours
Age Range (Description)Adult
Product Dimensions3.55"W x 12.7"H
Model Name40 OZ WIDE FLEX CAP
Item Weight1.48 ounces
ThemeSolid
MaterialSTEEL
Number of Items1
PatternBottle
Included Componentsbottle, lid
Product Care InstructionsHand Wash Only
Base Diameter3.6 Inches
Cap TypeFlex Cap
With LidYes
Is Dishwasher SafeYes
UPC810007831770
ManufacturerHydro Flask
Is MicrowaveableNo
Item Package Dimensions L x W x H11.61 x 4.06 x 3.9 inches
Package Weight0.58 Kilograms
Item Dimensions LxWxH3.55 x 3.55 x 12.7 inches
Brand NameHydro Flask
Warranty DescriptionLIFETIME
Suggested UsersUnisex-Adult
Part NumberW40BTS001
Model Year2020
Style40 Oz
Size40 Ounces

Have a Question? See What Others Asked

Would the 20oz size fit in a standard car cup holder?
Where us this item manufactured?
Can i get a lid without a straw?
Does the 20 oz size fit in a standard size car cup holder? I’m asking if it will fit without any sort of adaptor. Thank you!

Reviews

4.7

All from verified purchases

G**L

Great Insulation, Perfect Size

The Hydro Flask 32oz water bottle has quickly become my go-to for staying hydrated throughout the day. It hits the sweet spot in size — large enough to keep me hydrated for hours without being too bulky to carry around. Whether I’m at the gym, at work, or on a hike, it’s the perfect companion.The insulation is seriously impressive. My water stays ice-cold for literally the entire day — sometimes even into the next. I’ve also tested it with hot beverages during the winter, and it performs just as well. The double-wall vacuum insulation does exactly what it promises.Design-wise, it’s sleek and simple but still feels durable and high-quality. I opted for a matte finish and it not only looks great but also gives a nice grip. The wide mouth makes it easy to fill, clean, and add ice cubes, and the lid seals tight with zero leaks. I also love that it fits in most cup holders and backpack side pockets, despite the larger size.If you’re looking for a reliable, well-designed water bottle that keeps your drinks cold (or hot) for hours, the Hydro Flask 32oz is absolutely worth the investment. It keeps me drinking more water, and honestly, I kind of look forward to carrying it around.

A**S

Beautiful and functional

So far it's great - nice color and beautiful design, very durable due to being metal, fatter than most other metal bottles so it doesn't fall over so much (could be even fatter like a Nalgene). It has developed a slight nasty smell but you don't notice it unless you're paying attention. The handle is probably unnecessary, it's easier to just hold the bottle usually. The main issue is that it's kinda heavy -- due to the whole microplastics thing I would have switched to a metal bottle much earlier if not for the weight, but I guess that might require new technology to solve.

S**H

Practically perfect flask

Love it. I got this for my elderly father, upgrading it with the metal lid. It’s of a perfect size, and not at all heavy for him to carry around when full. It keeps its hot contents hot and cold contents cold. It’s a big improvement for his single walled flask which could not be used for hotter liquids. Even when wet the texture gives enough grip to prevent slipping. The wide mouth also makes it easier to get a brush inside and clean along the tapered portion.I have the 64oz, which is another wonderful product, but this one hits the mark in so many ways.

L**Z

Great quality!

This is a GREAT water bottle. With the wide mouth, it is easy to fill with ice. It is not as huge as some bottles, which was one of the reasons that I chose it; it is not bulky, it's easy to hold, and it fits in our car's cup holders. A bit pricey, but this is a quality item. Used it today and it kept my ice water COLD. Now my husband wants his own! My research paid off. Go for it!

G**E

Great quality water flask.

I love this water flask. So much better than drinking out of plastic bottles! I purchased a wider opening and it's a breeze to clean. It keeps contents cold. I haven't put anything hot into it yet but I believe it would not disappoint. It's almost like a pet to me so I purchased a couple of vinyl stickers to adorn and personalize it. 😁 (A lion and owl in medieval manuscript style.) Fun.

S**Y

Nonstop Usage

I don't know why, but the lavender/light purple version of this bottle chipped and dented far more easily than any of my other hydro flask.I also have this in a baby puke green and turquoise. They have held up wonderfully through heavy use and being taken everywhere. They get 5 stars.The purple one is a fluke, sadly. The color is gorgeous. I am still giving this review 5 stars because these are all I've used for almost 5 years. However, my heart breaks for the purple bottle that couldn't.

M**H

Worked great, only one little hiccup

I bought this thermos to keep water hot for making bottles for my picky baby when we were traveling. It did a good job keeping the water warm enough for her for up to 8 hours. However, I had problems with the rubber inner seal falling out. This happened when TSA would check the thermos and it was a big inconvenience. I imagine this happens when you put hot water in it but still, it’s a drawback.All in all it worked well for me and it’s a beautiful color.

M**I

My wife is happy.

This is solid water bottle that keeps liquid cold / hot. It doesn't leak, easy to use. My wife used it for about an year now and is very happy with it. Easily fit in her bag pocket.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Hydro Flask40 Oz Wide Flex Cap Black | Desertcart GB