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Mainstays

Mainstays 40 oz Black Stainless Steel Double Wall Water Bottle

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 Color:Black

Key item features

  • Large Capacity: With a 40-ounce volume, it provides ample liquid to keep you hydrated throughout the day, whether at work, during workouts, or on the go.
  • Superior Insulation: Double-wall vacuum insulation technology maintains the temperature of your drinks. Hot beverages stay warm for hours, and cold ones remain refreshingly chilled.
  • Modern Design: The black finish offers a modern and stylish look, ensuring it always looks pristine.
  • Leak-Proof Cap: Its secure, leak-proof cap prevents spills, making it a reliable companion for travel in bags, backpacks, or cup holders.
  • Eco-Friendly: Made of stainless steel, it reduces plastic waste, contributing to environmental sustainability.
  • Easy Cleaning: Dishwasher-safe for convenient and hassle-free cleaning.
  • Wide Mouth: The wide mouth allows for easy filling and drinking, enhancing user convenience.
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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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About this item

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Customer ratings & reviews

4.6 out of 5 stars
stars306 ratings128 reviews
How item rating is calculated
5.0
4.8
4.8
5.0
5.0
3.3
  1. 5 stars77% (237)
  2. 4 stars14% (43)
  3. 3 stars4% (11)
  4. 2 stars2% (6)
  5. 1 star3% (9)

Reviews summary

Pros

  • : Simple design makes it easy to use daily.
  • : Made with material that resists dents and leaks.
  • : Has a clean appearance.
  • : Features a smooth, clean shape that fits easily in bags.
  • : Has a sturdy handle and fits in backpack side pockets.

Neutral

  • : Can be smooth, but may require adjustments.
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Customer photos

  • +128 images
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Showing 1-3 of 128 reviews

Feb 23, 2026
J624632000
Top Reviewer
Item details
Color: Purple
5 out of 5 stars review

Verified Purchase

nice liter bottle

I got this other color of lavender because it was my favourite color. It takes a liter of bottled water. I take it to the gym. The cap is tightly closed so there is no leakage

Helpful?6IOIPQL2RFS314059268240
Feb 23, 2026
J624632000
Top Reviewer
Item details
Color: Black
5 out of 5 stars review

Verified Purchase

nice for carrying water for workouts

This was a good product to buy for my workouts at my gym. It takes a liter bottle of water. It has a closed twist top so when its closed and I knock over there are no spills to clean

Helpful?6IOIPQL2RFS314059268240
Jan 31, 2026
Deiontreneca
Top Reviewer
5 out of 5 stars review

Verified Purchase

Keeps drinks really cold!!

These bottle is the best. It keeps my drinks cold for a really long time and is a good size. Even if it's in a hot room my drink in this bottle stays really cold. I've had others and this is my favorite so far. I only wish it had a straw!

Helpful?6IOIPQL2RFS314059268240