40 Oz Wide Flex Straw Cap

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Product details

Web ID: 23009838

Our Wide Mouth bottles and our insulated, leakproof Flex Straw Cap are the perfect pair. Easy to open and close. Smooth to sip. Easily enjoy cold hydration anywhere.

  • Product Features

    • TempShield double wall vacuum insulation keeps contents cold up to 24 hours
    • Insulated Flex Straw Cap is leakproof when closedMade with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer
    • Wide Mouth opening is ice cube friendly
    • Lifetime
    • Color Last powder coat stays clean and colorful
    • Bottle fits most backcountry water filters
    • Dishwasher safe
    • BPA Free
    • Flex Straw Cap not intended for use with hot liquids
    • Not for use on a stove, in a microwave or freezer
    • Bottle fits all Wide Mouth caps and lids
    • Steel
    • Imported

  • Shipping & Returns

    • This item qualifies for Free Shipping with minimum purchase! exclusions & details
    • Our Normal Gift Boxing is not available for this item.
    • Enjoy a longer window to return most of your holiday purchases. See our Extended Holiday Return Policy to see if this item qualifies.
    • California and Minnesota customers call 1-800-289-6229 for Free Shipping information.
    • For complete details, see our Shipping and Returns policies.

Ratings & Reviews

Here's what customers think
  • The water bottles are praised for their excellent insulation, keeping drinks cold for hours, and their durable, attractive construction available in a wide range of colors.
  • Customers find the bottles easy to clean and carry.
  • However, some reported issues with leaks, incorrect color deliveries, and problems with the straw design.
  • Overall, the majority of customers are highly satisfied with the quality and performance of the water bottles.
AI-generated summary from 830 customers reviews.
4.3/5

830 star ratings & reviews

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830 reviewssorted by Newest

Jackie F.
12 days ago
Incentivized review

Not the best water bottles

I’m very disappointed in this product. Bought one for me and my daughter and when you use it it leaks down the front of you. .

Customer review from hydroflask.com

Wade A.
18 days ago
Incentivized review

Wide mouth with flex Straw cap.

The insulation works really well. It keeps my drinks cold for hours, which is perfect for long days at work or when I’m out training. I haven’t had issues with leaking, and the lid design is secure while still being easy to open and close.

Customer review from hydroflask.com

Samantha D.
19 days ago
Incentivized review

Beautiful color! I really like this water bottle

We've used HydroFlask bottles for about 10 years and love this brand for its ease of cleaning and clean third-party test results for its stainless steel.

Customer review from hydroflask.com

Kailah C.
26 days ago
Incentivized review

Absolutely amazing

This was the perfect water bottle for me. I absolutely adore it. Best purchase I’ve made so far.

Customer review from hydroflask.com

Dean S.
26 days ago
Incentivized review

40oz Hydroflask

Excellent !!!!! Great for travel , hiking , kayaking & outdoor excursions…. . loving the personal logo !!

Customer review from hydroflask.com

Robert G.
1 month ago
Incentivized review

Hydro Flask - Changed the size of the Font

This is our 5th or so order and we always have these engraved for family members. Helpful so boys don't lose them. The prior font fit with the size of the water bottle and was honestly very nice and stood out. LOTS of compliments and made them easy to spot. The current font is super small and doesn't look right on a 40oz bottle. We were surprised and disappointed at the change, especially since the price has gone up. Quality of the Bottles is still great, but wouldn't pay the extra for engraving again.

Customer review from hydroflask.com

Rosemarie D.
1 month ago
Incentivized review

Finally, a good one

I am getting rid of my lesser water bottles. This one really does keep cold liquid cold and the hot ones hot. Great for my round of golf.

Customer review from hydroflask.com

Glenda D.
1 month ago
Incentivized review

Keeps Water cool

Not my first Hydroflask, but the drinking straw lid, the straw does not stay open unless you put your thumb on the spout while drinking, otherwise you suck in air. I like how the spout snaps down into the lid.

Customer review from hydroflask.com