Mainstays 40 oz Stainless Steel Tumbler with Straw and Handle, Double Wall Insulated, Black
Mainstays 40 oz Stainless Steel Tumbler with Straw and Handle, Double Wall Insulated, Black
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Mainstays

Mainstays 40 oz Stainless Steel Tumbler with Straw and Handle, Double Wall Insulated, Black

Mainstays 40 oz Stainless Steel Tumbler with Straw and Handle, Double Wall Insulated, BlackMainstays 40 oz Stainless Steel Tumbler with Straw and Handle Double Wall Insulated BlackMainstays 40 oz Stainless Steel Tumbler with Straw and Handle Double Wall Insulated PinkMainstays 40 oz Stainless Steel Tumbler with Straw and Handle Double Wall Insulated White
Actual Color:Black

Key item features

  • Durable Material: Made from 18/8 recycled stainless steel, ensuring a BPA-free and rustproof construction.
  • Insulated Design: Features double-wall vacuum insulation to keep beverages at the desired temperature for longer periods.
  • Generous Capacity: Holds up to 40 ounces, making it ideal for staying hydrated throughout the day.
  • Reusable Straw: Comes with a reusable straw, promoting eco-friendly practices and convenience.
  • Versatile Use: Suitable for various activities such as swimming, sports, travel, camping, and parties.
  • Convenient Handle: Equipped with a large handle for easy carrying and handling.
  • Health-Safe: Made of food-grade stainless steel, ensuring no harm to human health and no metallic taste.
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Current price is $12.4431.1 ¢/oz
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About this item

Product details

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Customer ratings & reviews

4.4 out of 5 stars
stars862 ratings273 reviews
How item rating is calculated
  1. 5 stars76% (651)
  2. 4 stars9% (74)
  3. 3 stars5% (39)
  4. 2 stars3% (23)
  5. 1 star9% (75)

Reviews summary

Pros

  • : Holds plenty of liquid without needing frequent refills.
  • : Keeps cold for hours, even overnight.
  • : Offers great quality at a lower cost.
  • : Made with sturdy materials for a solid feel.
  • : Maintains temperature for several hours with remaining ice.

Cons

  • : May break or crack with rough handling or drops.
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Showing 1-3 of 273 reviews

Jun 20, 2025
Johnny
Item details
Color: Black
5 out of 5 stars review

Verified Purchase

it will keep us overnight easily. keeps everything cold I love it. the only thing I don't like the lid is a little difficult to put on. and it's top heavy it will tilt over very easily. but I would order another one without thinking twice about it highly recommend it

Helpful?5O2GLGI87PAA5298196424
May 18, 2025
Kay
Top Reviewer
Item details
Color: Pink
5 out of 5 stars review

Verified Purchase

Nice Water bottle

I left my other water bottle at work and needed another. This bottle keeps the water cold even the next day. I put ice water in about 12:40 in the afternoon on Sat. On Sunday at 8:20 in the morning it's still cold even though I still had a little water left over from the day before. That means a lot to me. It tells me it works!! It's also tall.

Helpful?5O2GLGI87PAA5298196424
Nov 2, 2025
Anita
Top Reviewer
Item details
Color: Black
5 out of 5 stars review

Verified Purchase

Great cup for water drinkers

If water is your drink of choice, this LARGE 40 oz cup is what you need to own. It has a stainless steel inside and a plastic outside. The lid screws on and the only way to drink out of it is the tough plastic straw. If you don't want to drink out of the straw, you can unscrew the lid and drink out of the cup. Be aware that if you spill it, EVER YTHING will get wet!

Helpful?5O2GLGI87PAA5298196424