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Hydro Flask
40oz Wide Flex Straw Travel Bottle

4.380952380952381 out of 5 stars
21 Reviews
$54.95
Color:White

Size:

Quantity

Only 3 In stock


Stay hydrated with the 40oz Wide Flex Straw Bottle—durable, leakproof, and ice-cold

What Our Gearhead® Experts Are Saying:


"This bottle is a lifesaver on long hikes. The Flex Straw Cap makes it super convenient to sip while on the move, and the insulation keeps my water ice-cold all day."


We trust the HydroFlask 40oz Wide Flex Straw Bottle to keep us refreshed and hydrated during our most demanding adventures. Thanks to TempShield®️ insulation, our drinks stay cold for up to 24 hours, ensuring icy refreshment whether we’re summiting peaks or logging hours on the trail. The Wide Mouth design accommodates ice cubes with ease, while the durable straw cap provides effortless, one-handed hydration on the go.


Designed for convenience, this bottle is dishwasher safe for easy cleaning and compatible with all HydroFlask Wide Mouth caps and lids. Its pure-taste design ensures no flavor transfer between beverages, and the rugged construction is built to last. Whether we’re tackling an intense hike or enjoying a relaxing day outside, this bottle is always up to the task.


Details

  • Insulated 40oz bottle keeps drinks cold for up to 24 hours
  • TempShield®️ double-wall vacuum insulation ensures icy refreshment
  • Leakproof Flex Straw Cap allows easy one-handed hydration
  • Wide Mouth opening fits ice cubes for extra cooling power
  • Durable, pure-taste design prevents flavor transfer
  • Dishwasher safe for easy cleanup after adventures
  • Compatible with all HydroFlask Wide Mouth caps and lids
  • Item #HYFZ05W
Material
stainless steel
Volume
40fl oz
Lid
Flex Straw Cap
Dimensions
3.6 x 11.7in
Claimed Weight
1lb 0.8oz
Activity
casual, travel
Manufacturer Warranty
limited lifetime

What do you think about this product?

Overall Rating

4.5 based on 21 ratings

Review Summary

1 Stars - 2 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 3 reviews
5 Stars - 15 reviews

Customer Images

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5 out of 5 stars

July 10, 2025

You need this hydro flask

[This review was collected as part of a promotion.] I bought the 40 oz with the tapered bottom that will fit in a cup holder and I love it. I have quite a few Hydro Flasks but this is my favorite one.

Amy C.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

July 9, 2025

Perfect for everywhere.

[This review was collected as part of a promotion.] Love this bottle. It keeps my water cold all day long, even when sitting in the sun. It rolls around with my tools and isn’t phased. I like that it fits in my cup holder as well.

Leonard R.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

June 21, 2025

40 oz travel bottle

[This review was collected as part of a promotion.] I got this because of the increase in volume from the 32 oz travel bottle that I currently have. It fits in the cup holder in my car, and is easy to carry. I love your products and am using this on a daily basis.

Rob C.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

June 15, 2025

Found my perfect water bottle finally!

[This review was collected as part of a promotion.] I have finally found the perfect water bottle. 40 oz and fits in a cup holder!

Kristen L.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

June 15, 2025

Hubby Loves it!

[This review was collected as part of a promotion.] Bought for my hubby. He loves it and fits into cup holder on his truck. this holds plenty of water and I just love how sleek and strong the Hydro Flask water bottles look.

Maria R.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

June 14, 2025

Works fantastic

[This review was collected as part of a promotion.] Was exactly as described and exactly what I needed

Carly F.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

June 14, 2025

Gets the job done!

[This review was collected as part of a promotion.] Just love this bottle for traveling. Don't have to worry about it tipping over because the top completely closes. The 40 oz size lasts a while. It will stay cold all day. Easy to carry.

Sheila G.
hydroflask.com

Originally reviewed on hydroflask.com

1 out of 5 stars

June 13, 2025

Not so great!

[This review was collected as part of a promotion.] The lid kept coming up and was caused leaking when I go to drink it. Also, I wish it was the proof so I could travel with it. I’m not impressed.

Karen O.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

June 7, 2025

Perfect Bottle for Me!

[This review was collected as part of a promotion.] This is the perfect size for me! I always wanted a 40 oz but hated that it didn’t fit my cup holder! I love the color too! It matches my kindle! LOL

Maine O.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

June 5, 2025

Love it

[This review was collected as part of a promotion.] I just love it! It keeps my water icy cold for hours, even during my training at the gym. Amazing quality!

Adriana H.
hydroflask.com

Originally reviewed on hydroflask.com