Description

Price: $39.95
(as of Mar 14, 2026 20:29:03 UTC – Details)

Product description

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.

Standard Mouth Compatible Lids

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.

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

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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

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Fits in Vehicle Cup Holders

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Leakproof

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24 hours cold, 12 hours hot
TempShield️ double-wall vacuum insulation
Leakproof when closed
Won’t retain odor or leftover flavor
Durable stainless steel
Fits most cupholders
BPA-Free
Dishwasher safe
Not for use on a stove, in a microwave or freezer