How long does it keep drinks cold or hot?

Hydro Flask rates it for 24 hours cold and 12 hours hot with the TempShield double-wall insulation.

Is the Flex Sip lid leakproof?

Yes, it is leakproof when closed. Open the sip valve before drinking, and close it before putting the bottle in a bag.

Does it fit in a car cup holder?

The 20 oz Wide Mouth is the size most likely to fit standard cup holders; larger Wide Mouth bottles usually do not.

Can I put ice cubes in it?

Yes. The Wide Mouth opening is wide enough for standard ice cubes.

Does it come with a different lid?

It ships with the Flex Sip lid. Other Wide Mouth lids from Hydro Flask fit the same opening if you want a plain cap or a straw lid.

Will it change the taste of my water?

No. The stainless steel interior is taste-neutral and does not transfer flavors between drinks.

What do buyers say about the Hydro Flask Wide Mouth with Flex Sip Lid 20 oz Bottle?

Rated 4.3 out of 5 from 3,600 ratings.

Where can I buy the Hydro Flask Wide Mouth with Flex Sip Lid 20 oz Bottle?

6 stores we checked sell it, including Bagmasters.com, Nordstrom Rack, Hydro Flask, Macy's, MotoSport.com.

Hydro Flask Wide Mouth with Flex Sip Lid 20 oz Bottle

Q: Where is the Hydro Flask Wide Mouth with Flex Sip Lid 20 oz Bottle cheapest?

At Bagmasters.com, for $17.36, 50% under what the other stores charge, as of our latest check.

Best price now

$17.36at Bagmasters.comChecked Nov 4

50% under what the other stores charge

Compared across 6 stores. Prices are checked against each store and labelled with when.

Visit Bagmasters.com

What reviewers say

4.3 / 53,600 ratings

Rated 4.3 out of 5 from about 3,600 ratings, owners mostly praise the insulation, the leakproof Flex Sip lid and the easy one-handed drinking. Complaints center on cleaning the lid and straw and on the bottle holding less than larger Hydro Flask sizes.

What people mention

InsulationPraisedOwners say cold drinks stay cold through a workday and hot drinks hold heat for hours.
Leakproof lidPraisedReviewers report the Flex Sip lid seals well and does not leak when tossed in a bag.
CleaningCriticisedThe straw and gasket in the lid are harder to clean than a simple screw cap and need regular attention.
CapacityMixedSome owners find 20 oz too small for a full day out and wish they had a larger Wide Mouth.
Drinking easePraisedThe flexible straw lets people drink one-handed without tipping the bottle.

About the Hydro Flask Wide Mouth with Flex Sip Lid 20 oz Bottle

The Hydro Flask Wide Mouth with Flex Sip Lid is a 20 oz insulated bottle made of durable stainless steel. TempShield double-wall vacuum insulation keeps drinks cold for 24 hours or hot for 12 hours.

The wide mouth opening is ice-cube friendly. The bottle is leakproof when closed, and the stainless steel gives a pure taste with no flavor transfer.

Capacity

20 oz

Material

Stainless steel

Insulation

TempShield double-wall vacuum

Cold retention

Up to 24 hours

Heat retention

Up to 12 hours

Diameter