Mainstays 20 oz Double-Wall Stainless Steel Tumbler with Straw Lid, Purple
Mainstays 20 oz Double-Wall Stainless Steel Tumbler with Straw Lid, Purple
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Mainstays

Mainstays 20 oz Double-Wall Stainless Steel Tumbler with Straw Lid, Purple

1,110 ratings
Mainstays 20 oz Double-Wall Stainless Steel Tumbler with Straw Lid, PurpleMainstays 20 fl oz Stainless Steel Double Wall Tumbler Straw Lid Purple ColorMainstays 20 fl oz Stainless Steel Double Wall Tumbler Straw Lid Black ColorMainstays 20 fl oz Stainless Steel Double Wall Tumbler Straw Lid Pink Color
Actual ColorPurple

Key item features

  • Complete Straw Set: This tumbler includes a straw lid and two straws, providing a ready-to-use solution for immediate sipping.
  • Adjustable Straw Access: Features a versatile four-way threaded lid, allowing for four distinct straw placements to accommodate various drinking preferences and comfort.
  • Effortless Cleaning: Designed for convenient maintenance, the tumbler boasts a dishwasher-safe construction complemented by a wide-mouth opening for easier cleanup.
  • Specific Product Dimensions: The purple tumbler measures 9.64 inches in height, 5.12 inches in width, and 2.71 inches in length, with an assembled weight of 0.77 pounds.
  • Insulated Capacity: Offers a practical 20 oz capacity suitable for daily beverages, enhanced by double-wall vacuum insulation to maintain hot or cold drink temperatures longer.
  • Durable Ergonomic Build: Constructed from robust 18/8 stainless steel and equipped with an ergonomic handle, ensuring a comfortable and secure grip during use.
  • Travel Friendly: Engineered to fit standard cupholders, providing convenient portability for use on the road, at work, or during daily routines.
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About this item

Product details

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Customer ratings & reviews

4.3 out of 5 stars
stars
1,110 ratings254 reviews
How item rating is calculated
  1. 5 stars69% (768)
  2. 4 stars11% (123)
  3. 3 stars7% (77)
  4. 2 stars4% (39)
  5. 1 star9% (103)

Reviews summary

Pros

  • : Straw and lid can be removed for cleaning.
  • : Ideal for carrying and fitting in cup holders.
  • : Available in various attractive shades.
  • : Offers good features and performance for the cost.

Neutral

  • : The lid seals in cup holders but can leak when tipped.
  • : Can be smooth with silicone straw, but often proves difficult due to design.
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Showing 1-3 of 254 reviews

Aug 19, 2026
Reviewer name: Remi
Item details
Color: Purple
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Nice cup

I really like the cup except you have to pull very hard to get something out of it. When I looked at the top piece really well I saw why. There's something in there that stops it from a full flow. If you take your scissors and cut the top rubber piece just passed that point it works perfect.. if you look at it, you'll see what I'm talking about.

Helpful?1XBPWO68IP4C13453350767
Jun 1, 2026
Reviewer name: Matt
Top Reviewer
Item details
Color: Purple
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great value and quality

This has an excellent seal, I can shake my drink up to mix it, and it doesn't make a mess. The straw is soft, although you do have to suck hard. I might make the opening a little larger but overall, I was really impressed for the price.

Helpful?1XBPWO68IP4C13453350767
May 24, 2026
Reviewer name: Angela
Top Reviewer
Item details
Color: Purple
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great Everyday Cup

I've been using this daily and it's honestly been really good for the price. It keeps my drinks cold for hours, and I love that it doesn't sweat on the outside. The purple color is super pretty, and the straw lid makes it easy to carry around with me. It feels sturdy and fits nicely in my cup holder too.

Helpful?1XBPWO68IP4C13453350767
Current price is $9.97
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