Small Flex Boot
$7.95

Small Flex Boot

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$7.95
Size Chart
Hydro Flask Pack Size Chart
Available Sizes S / M M / L
Torso
Measurement
18 - 19 in 19 - 22 in
43 - 48 cm 48 - 56 cm
Hip
Measurement
22 – 46 in 26 – 46 in
56 – 117 cm 66 – 117 cm
  1. 1. Torso Measurement

    • A. Bring your chin to your chest and feel for the most prominent bony bump where the slope of your shoulders meets the back of your neck. This is your C7 vertebra, and the top of your torso measurement.

    • B. On each side of your body, feel for the top of your hip bones, just below the sides of your ribs. With fingers pointing forward and thumbs pointing backward, draw an imaginary line between your thumbs. This is the bottom of your torso measurement.

    • C. Stand up straight and have a friend with flexible measuring tape measure the distance between your C7 vertebra and the imaginary line between your thumbs. That’s your torso measurement. If you are between pack sizes, go with the smaller size.

  2. 2. Hip Measurement

    While your torso measurement is the best indicator of your pack size, it’s still important to check your hip size when using a hipbelt. To find your hip measurement, wrap a flexible tape measure around the top of your hip bones, just below the sides of your ribs. This measurement is slightly higher than your waistline

Small Flex Boot | Hydro Flask
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Colorful protection.

Make your Hydro Flask your own with a colorful, durable silicone Flex Boot. Customize your look and protect against bumps and dings.

Small boot fits 12-24 oz wide and standard mouth bottles.

If your bottle is bigger than 24 oz, check out the Medium Flex Boot here!

Product Benefits

  • Removable, silicone boot adds extra protection to your Hydro Flask
  • Small boot fits 12-24 oz wide and standard mouth bottles
  • BPA-Free
  • Lifetime Warranty
Technology
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Standard Mouth Compatible
Standard Mouth Compatible

Mix and match.

Compatible with all Standard Mouth products for ultimate versatility.

Lifetime Warranty
Lifetime Warranty

We stand behind our products.

Hydro Flask guarantees this product with a limited lifetime warranty against manufacturer defects.

Let's Go!

Today is wide open. You lead, we'll follow.

#HeyLetsGo

Hydro Flask supports non-profit organizations focused on building, maintaining, restoring, and providing better access to parks. Since 2017, we have been doing just that:

  • 92 Non-profits supported non-profits.
  • $1.5 million Dollars donated donated.
  • 26,043 Bottles donated bottles.
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Reviews
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Questions

Does the small boot fit the 12 and 16 oz coffee bottle?

Asked by: Tucson tom
Yes. The small boot would fit up to and including the 24 oz flask.
Answered by: Hydro Flask Customer Team
Date published: 2018-01-04

Will it fit a wide mouth 18 oz

Asked by: Roger1
Yes, the small boot would fit the 18 oz flask. It would fit any flask up to 24 oz.
Answered by: Hydro Flask Customer Team
Date published: 2017-12-26

I have a 25 oz hydro flax bottle.  Which one should I buy the small or medium?

Asked by: Suzn

Will this boot fit the 24 oz. trail series bottle? 

Asked by: BrianAndre15

What size bottles for the small flex boot?

Asked by: Karly20

How tall is the boot ? 

Asked by: Annie3

Which boot can be used with the 16 oz. tumbler?

Asked by: NicoleR

Will the small flex boot fit a hydro flask tumbler 22oz?

Asked by: vacagirl50

What size hydroflask does the medium boot fit?

Asked by: Pinay75

Do any of your boots fit the Trail Series flasks?

Asked by: PDS81

Will the small boot fit the 24oz Trail series bottle??

Asked by: Donnie3

Do any of the boots fit the food flask?

Asked by: AlyHalvy

Will the boot fit the tumblers?

Asked by: IvieQ
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Hydro Flask supports non-profit organizations focused on building, maintaining, restoring, and providing better access to parks. Since 2017, we have been doing just that:

  • 92 Non-profits supported non-profits.
  • $1.5 million Dollars donated donated.
  • 26,043 Bottles donated bottles.