40 Oz Wide Flex Straw Cap

4.3 (812)
Last Act - Final Sale
Now $37.43 (25% off)$49.99
Color:Botanical Bliss Agave
Size:No Size

Product details

Web ID: 17954319
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
    • 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

4.3/5

812 star ratings, 810 reviews

Write a Review
71.3% of reviews have 5 stars
579
7.6% of reviews have 4 stars
62
8.6% of reviews have 3 stars
70
5.9% of reviews have 2 stars
48
6.5% of reviews have 1 star
53

107 customer images

810 reviews
Angela G.
4 days ago
Incentivized review

New year resolution

I love the container. Has kept water cold and goes anywhere with me.

Customer review from hydroflask.com

ELIZABETH A.
7 days ago
Incentivized review

Would not purchase again

Just ok - why isnt it cup holder capable? Its slender so it’s deceiving. Also the straw part sucks! I’ve spilled water on me so many times flipping it open and sometimes the suction lacks.

Customer review from hydroflask.com

Donna C.
9 days ago
Incentivized review

Beautiful Engraving

Love the engraving on both hydro flasks! Very well done and looks so good on the color(s) of Nectar and Plum hydro flasks. Each are beautifully engraved with the wording (s) and picture(s) I ordered! Also choosing and setting the engravings was simple! Thanks so much!

Customer review from hydroflask.com

External reviewer
9 days ago
Incentivized review

Just not like my trade-in

I'm highly disappointed with my purchase. This 40oz Wide mouth just doesn't keep my room tempature water on ice as cold as my two trade-ins. After 6 to 8hrs a full bottle of ice has significantly melted. Less than 24 hrs the ice is completely melted and water is almost room temperature, again. This with the top securely on. Which was not the case with either of my Hydro Flask 40 oz Wide mouth Trade-ins. It appears Hydro flask has changed the insulated stainless steel for an inferior quality. Disappointing. Time to go with another brand that meets my needs. Attached photo was a full bottle of ice melted after about 10 hrs. Plus the straws provided for the 40oz bottle is not long enough to reach the bottom of bottle. Disappointing!

  • Photo from External reviewer

Customer review from hydroflask.com

Kitty H.
12 days ago
Incentivized review

Christmas present

This purchase was for my 7 year old granddaughter. She definitely needs something sturdy and the color is like no other.

Customer review from hydroflask.com

Amanda B.
28 days ago
Incentivized review

Love lots but ONE little issue :(

I love how cold it keeps my water and for how long that is AMAZING!!! I absolutely adore how spill proof it is cause I am like a toddler, but the inside of the stew on top of the bottle gets pretty gross pretty fast and the inside plastic straw is actually moldy (despite me washing it twice already) and the dark color will not come out… so i need to buy a new straw which is a bummer cause it’s so soon after my purchase! Color is amazing tho and like I said so is the insulation it’s just something with the plastic straw! Thanks for hearing me out love a lot of my other products I’ve purchased from you!

Customer review from hydroflask.com

Rene M.
1 month ago
Incentivized review

Beautiful color.

Great and beautiful color. Cap came defective. Drinking stem. Is weirdly loose.

Customer review from hydroflask.com

Robert F.
1 month ago
Incentivized review

40oz wide mouth with straw

Takes a bit of getting used to but it’s an improvement over the previous flip lid system that stains and won’t come clean. I take it everywhere and am getting used to positioning the straw top wide open so I don’t get air. Overall I do like it!

Customer review from hydroflask.com