Mainstays 40 oz Black Stainless Steel Double-Wall Water Bottle
Mainstays 40 oz Black Stainless Steel Double-Wall Water Bottle
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Mainstays

Mainstays 40 oz Black Stainless Steel Double-Wall Water Bottle

410 ratings
Mainstays 40 oz Black Stainless Steel Double-Wall Water BottleMainstays 40 fl oz Stainless Steel Double Wall Bottle Chug Lid BLACKMainstays 40 fl oz Stainless Steel Double Wall Bottle Chug Lid PINK
Actual ColorBlack

Key item features

  • Ample Capacity: This Mainstays 40 oz water bottle supports daily hydration, offering generous volume for work, workouts, or travel with fewer refills.
  • Thermal Insulation: Features double-wall vacuum insulation designed to keep both hot and cold beverages at their desired temperatures for hours.
  • Secure Closure: Equipped with a screw-top lid and a leak-proof cap, ensuring secure carrying and limiting spills while on the move.
  • Easy Care: Constructed from BPA-free stainless steel, this durable bottle is entirely dishwasher-safe, allowing for convenient and hassle-free cleanup.
  • Practical Dimensions: Measures 11.93 inches high by 3.54 inches wide, weighing 1.04 pounds, with a sleek black finish for everyday routines.
  • Convenient Access: A wide-mouth opening is designed for easy filling and comfortable sipping of beverages, enhancing user convenience.
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Customer ratings & reviews

4.6 out of 5 stars
stars
410 ratings138 reviews
How item rating is calculated
  1. 5 stars78% (321)
  2. 4 stars12% (48)
  3. 3 stars5% (20)
  4. 2 stars2% (7)
  5. 1 star3% (14)

Reviews summary

Pros

  • : Simple design makes it suitable for daily use.
  • : Available in various shades.
  • : Features a smooth, clean shape that fits easily into bags.
  • : Made with material that resists dents and leaks.
  • : Offers similar quality at a lower cost.
  • : Holds a large amount of liquid for extended use.
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Showing 1-3 of 138 reviews

Sep 29, 2026
Reviewer name: Elvis
Top Reviewer
Item details
Color: Black
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

good

looks okay, lets see if it last

Helpful?6IOIPQL2RFS314059268240
Sep 17, 2026
Reviewer name: Elaine
Top Reviewer
Item details
Color: Pink
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

I love my thermos. It keeps my water cold for hours. I have not tried any hot liquid yet.

Helpful?6IOIPQL2RFS314059268240
Oct 8, 2026
Reviewer name: Fuzzy
Top Reviewer
Item details
Color: Black
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This is an excellent option for extra water in your vehicle.

Helpful?6IOIPQL2RFS314059268240
Current price is $13.97
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Ships in the manufacturer's original packaging, which may reveal the contents.

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