SKU: 91019603190

Hydro Flask 21-oz Lightweight Standard Mouth Water Bottle

Sale price$44.98 Regular price$49.98
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Ships within 48 hours · Estimated delivery Aug 23 - Aug 28

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Description

Hydro Flask 21-oz Lightweight Standard Mouth Water BottleHIGHLIGHTS: Drinks stay cold up to 24 hours Drinks stay hot up to 12 hours Double wall vacuum insulation 25% lighter than Hydro Flask's other standard mouth 21 oz bottles 18 8 stainless steel ensures durability and pure taste PRODUCT DETAILS: With lightweight construction, this Hydro Flask 21 oz Lightweight Standard Mouth Water Bottle is perfect for all your on the go adventures. Take it with you to the gym or on a hike. This bottle features stainless

HIGHLIGHTS:





  • Drinks stay cold up to 24 hours 


  • Drinks stay hot up to 12 hours 


  • Double-wall vacuum insulation


  • 25% lighter than Hydro Flask's other standard mouth 21-oz bottles


  • 18/8 stainless steel ensures durability and pure taste




PRODUCT DETAILS:



With lightweight construction, this Hydro Flask 21-oz Lightweight Standard Mouth Water Bottle is perfect for all your on-the-go adventures. Take it with you to the gym or on a hike. 



This bottle features stainless steel insulation and a durable design. Plus, the double-wall vacuum insulation keeps your cold drinks cold for up to 24 hours and your hot drinks hot for up to 12 hours. 



Sam's Club is committed to offering quality products and services at an exceptional value. To serve that goal, this product was not purchased directly from the manufacturer or its authorized distributor but from a third-party dealer, accompanied by strict controls to verify the authenticity and quality of the product. This is in accordance with standard business practices in the retail and warehouse club industry. As always, if you are not satisfied with your purchase for any reason, we'll replace it or provide a refund according to the terms of our 100% Merchandise Satisfaction Guarantee.



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SKU: 91019603190

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4.2 ★★★★★
Based on 24 reviews
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Verified Purchase
Finngirl
Lowell, US
★★★★★ 5
Good quality, smooth feel
I got these briefs so recently that have washed just one pair so far. First off, these are very comfortable, the material is soft & bordering silky, good quality sewing. Wash well and minimal if any shrinkage. They do come a bit wrinkled from the dryer but hey, these are underwear and will go on smoothly. If it were a t-shirt, I would look sloppy. I feel the sizing is accurate. No rolling and these don't announce themselves under clothing. Planning on getting more of these boxers and replacing my old panties.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 31, 2026
S
Verified Purchase
Skurtzo
Massapequa, US
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 29, 2025
S
Verified Purchase
Shanna
Birmingham, US
★★★★★ 5
Functional + Sexy
Size: Small, Color: Multicoloured E-(5-pack), Size: Small, Color: Multicoloured E-(5-pack)
Not only do these feel good, my husband can’t keep his hands off me. They fit so good and are soft. I change into these to sleep but also just use them as shorts to wear around the house. They’re comfortable and don’t slide around. I got a size small and I’m 100lbs.
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Reviewed in the United States on April 13, 2026
C
Verified Purchase
ClairY
Grantham, US
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
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Reviewed in the United States on May 17, 2026
A
Verified Purchase
Amazon Customer
Cuba, US
★★★★★ 3
Ehh
Size: Medium, Color: Multicoloured E-(5-pack)
Very thin, still comfy but very thin material. Super soft though. I've worn and washed and they have held up but I won't be repurchasing bc these are so thin
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026

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