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Hydro Flask Standard Mouth Water Bottle, Flex Cap - 18 oz, Graphite

4.6 4.6 out of 5 stars 152 ratings

Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Hydro Flask
Capacity 0.53 Liters
Color Graphite
Age Range (Description) Kid

About this item

  • Bpa-free
  • Clean by hand washing
  • Lifetime warranty
  • One 18 ounce graphite standard mouth water bottle
  • Pro-grade stainless steel construction

Product Description

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TempShield Technology

Colder. Hotter. Longer.

Our unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.

Pro-Grade Stainless Steel

Pure and refreshing. Every time.

Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer — and the durable construction stands up to whatever life brings.

Proprietary Powder Coat

Comfortable and durable.

Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.

Hydro Flask Pledge

We stand behind our products.

All new purchases from authorized Hydro Flask retailers come with a limited lifetime coverage against manufacturer defects. Visit our official website for more information.

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Standard Mouth Compatible Lids

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Standard Mouth Flex Cap (Included)

Moves with you.

Strong yet flexible, the Standard Mouth Flex Cap is the perfect companion for spontaneous campouts, epic road trips, and everything in between. Made with stainless steel pivots and an easy-to-carry strap, this cap has Honeycomb Insulation to help keep your drinks cold for up to 24 hours or hot up to 12. Pair it with any of the Hydro Flask Standard Mouth bottles.

Standard Mouth Sport Cap

Sip. Refresh. Go.

From mountain trails to morning yoga class, the Standard Mouth Insulated Sport Cap lets you hydrate one-handed and on the fly. It’s the first insulated sport cap specifically designed to keep water in your Hydro Flask bottle ice cold, sip after sip.

Sport Cap is not intended for use with hot liquids and is not leakproof.

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Hydro Flask 18 oz Standard Mouth w/ Flex Cap Hydro Flask 21 oz Standard Mouth w/ Flex Cap Hydro Flask 21 oz Standard Mouth w/ Sport Cap Hydro Flask 24 oz Standard Mouth w/ Flex Cap
Volume 532 mL 621 mL 621 mL 710 mL
Mouth Diameter 1.91" 1.91" 1.91" 1.91"
Diameter 2.87" 2.87" 2.87" 2.87"
Height 8.7" 9.4" 10.4" 10.8"
Weight 11.3 oz 12 oz 12 oz 13.2 oz
BPA Free
Fits in Vehicle Cup Holders
Leakproof

Product information

Technical Details

Additional Information

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Hydro Flask Standard Mouth Water Bottle, Flex Cap - 18 oz, Graphite


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Customer reviews

4.6 out of 5 stars
4.6 out of 5
152 global ratings

Top reviews from the United States

Reviewed in the United States 🇺🇸 on September 28, 2019
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Reviewed in the United States 🇺🇸 on October 11, 2018
Reviewed in the United States 🇺🇸 on December 13, 2017
One person found this helpful
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Reviewed in the United States 🇺🇸 on March 14, 2019
Reviewed in the United States 🇺🇸 on October 19, 2018
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Reviewed in the United States 🇺🇸 on August 13, 2018
Reviewed in the United States 🇺🇸 on October 31, 2019

Top reviews from other countries

K. F. Moore
4.0 out of 5 stars Good, Not Perfect
Reviewed in the United Kingdom 🇬🇧 on September 8, 2019
One person found this helpful
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Richard
5.0 out of 5 stars Ignore the negative reviews. Simply the best vacuum flask you can buy!
Reviewed in the United Kingdom 🇬🇧 on April 24, 2019
6 people found this helpful
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Jennifer
5.0 out of 5 stars Super Trinkflasche
Reviewed in Germany 🇩🇪 on November 10, 2019
Jens Kallfass
5.0 out of 5 stars zu Empfehlen !
Reviewed in Germany 🇩🇪 on December 3, 2019
BeatriceS
5.0 out of 5 stars Hydro Flash molto funzionale
Reviewed in Italy 🇮🇹 on December 26, 2019