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

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

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

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.
  • Large Capacity: With a 40-ounce capacity, this tumbler is perfect for staying hydrated throughout the day.
  • Reusable Straw: Comes with a reusable straw, making it an eco-friendly choice for daily use.
  • Convenient Handle: Equipped with a large handle for easy carrying and comfortable grip.
  • Versatile Use: Ideal for various activities such as swimming, sports, travel, camping, and parties.
  • 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
stars834 ratings267 reviews
How item rating is calculated
  1. 5 stars76% (631)
  2. 4 stars8% (70)
  3. 3 stars5% (39)
  4. 2 stars3% (22)
  5. 1 star9% (72)

Reviews summary

Pros

  • : Holds plenty of liquid without needing frequent refills.
  • : Keeps cold for hours, even overnight.
  • : Offers great quality at a lower cost.
  • : 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 267 reviews

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?5O2GLGI87PAA5369411658
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?5O2GLGI87PAA5369411658
Apr 19, 2026
DR
Top Reviewer
Item details
Color: Black
5 out of 5 stars review

Verified Purchase

GRAB THIS - Wonderful!

40 Ounces. Insulated, and kept my drink nice and cold for 5 plus hours outside - even though the temps went to the mid 80s', and the cup is BLACK... I was a bit surprised my drink was still cold under the blaring sun on a cloudless day! Fits into a regular vehicle cup holder - built in or add on, long so if you have a deep built-in cup or add on holder in vehicle, this will fit perfectly! The lid is a twist to shut, but I never had the need to shut it, comes with a nice thick reusable straw... I did place the cup in the freezer for a quick chill - held up fine, whatever water or tea I didn't finish, would be refrigerated, and surprisingly, still fresh!

Helpful?5O2GLGI87PAA5369411658