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

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

989 ratings
Mainstays 40 oz Double-Wall Vacuum Insulated Stainless Steel Tumbler with Straw and Handle, 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 ColorWhite

Key item features

  • Durable Construction: Constructed from 18/8 recycled stainless steel and BPA-free components, ensuring a robust build for daily use.
  • Ample Hydration: Features a substantial 40 oz capacity, providing a large size for daily beverages and reducing the need for frequent refills.
  • Insulated Performance: Designed with double-wall vacuum insulation, this tumbler maintains beverage temperatures effectively for extended periods throughout the day.
  • Portable Accessories: Includes a fitted lid, a reusable straw, and an integrated handle, making the tumbler easy to carry and convenient for sipping on the go.
  • Product Dimensions: Measures 10.47 inches in height, 3.94 inches in length, and 5.91 inches in width, weighing 1.29 pounds, presented in a clean white finish.
  • Everyday Utility: Ideal for a wide range of uses, including home, office, travel, sports, camping, parties, and general daily routines, offering durable metal construction.
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About this item

Product details

Specifications

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Customer ratings & reviews

4.4 out of 5 stars
stars
989 ratings293 reviews
How item rating is calculated
  1. 5 stars75% (739)
  2. 4 stars9% (86)
  3. 3 stars5% (50)
  4. 2 stars3% (28)
  5. 1 star9% (86)

Reviews summary

Pros

  • : Holds plenty of liquid without needing frequent refills.
  • : The tumbler keeps beverages chilled with ice intact for up to 48 hours.
  • : 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 293 reviews

Sep 12, 2026
Reviewer name: Victoria
Top Reviewer
Item details
Color: Black
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Huge cup

This cup holds a lot of liquid which is why I got it. I'm going thru a urinary infection and my doctor has me taking antibiotics and lots of fluids and I needed something that would hold a lot of ice and water It keeps my drinks cold for hours and the ice stays in the cup also for hours. Pretty good insulation

Helpful?5O2GLGI87PAA5369411658
Aug 6, 2026
Reviewer name: Bast
Top Reviewer
Item details
Color: Pink
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

GOOD VALUE GOR PRICE BUT WATCH THE LID CAREFULLY!

The cup is very well insulated and the surface texture allows easy gripping even when the handle isn't in use. The reason why I rated the lid lower is the center swivel was broken when it was delivered and I didn't have the time option for a return as I needed an emergency use mug. 🙀

Helpful?5O2GLGI87PAA5369411658
Jul 8, 2026
Reviewer name: anonymous
Top Reviewer
Item details
Color: White
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

great value

love how much drink it holds and the length of time it stays cold.

Helpful?5O2GLGI87PAA5369411658
Current price is $12.4431.1 ¢/oz
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