Mainstays 20oz Stainless Steel Tumbler, Black price history and forecast - Mainstays
Mainstays 20oz Stainless Steel Tumbler, Black

Mainstays 20oz Stainless Steel Tumbler, Black

Brand:
Mainstays
Model Number:
UPC:
196557211997
EAN:
0196557211997
Walmart SKU:
5404066593
Key Takeaway

Price locked at $8.92 for 84 days, matching the 90-day average—suggesting this is the standard retail rate. Buyers shouldn't expect discounts soon.

Third-Party Seller Summary

No price history available for Third-Party Sellers

Walmart.com Summary

Walmart.com Price History Summary
Price Type Price Date
Highest Price
$8.92
Lowest Price
$6.98
Most Recent Price
$8.92
Average Price
$8.90
First Tracked
Last Update

Price Analysis

Tracking History: We have tracked Mainstays 20oz Stainless Steel Tumbler, Black since 12/19/2024. The most recent price update was on Jul 15, 2026.

Price Range: Over the past 90 days, the price has ranged from $6.98 (lowest on 12/19/2024) to $8.92 (highest on 8/9/2025). The average price during this period is $8.90.

Current Trend: Walmart.com prices have ranged from $8.92 (Jul 15) to $8.92 (Jul 15) over the past 90 days. Current price is close to the 90-day average of $8.92.

Customer Insights: Rated 4.5/5 from 397 reviews.

Customer Reviews

397 reviews

Customer Reviews

4.5
Based on 397 reviews
5
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Showing 10 of 397 reviews
WalmartCustomer May 5, 2025

The lid over the drinking hole covers the rim, and this makes it healthier and more sanitary than other types of lids, which is the case with 99% of other travel mugs. Both the weight and circumference are very good--it's not too heavy when filled, and tapers down from top to bottom so my small hands can easily hold it. Many other travel mugs in this 20-ounce size are too big around.

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Good alternative for a Yeti.

Anonymous October 25, 2025

Good alternative for getting a Yeti. I looked at yeti and didn't want to drop $40 so this one is a good alternative. The design is a little flawed with the screw top and the flip up stopper but to save $30 for basically the same thing I am happy with the purchase.

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Works Great!

Oasis December 23, 2025

It definitely keeps beverage hot and I prefer the screw on top. This allows you to close the sip hole without the lid coming off. Definitely get your bang for your buck!

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Rita June 13, 2025

I love this cup. i have bought it 3 years ago still working good.. I lost the little flap on inside of cup that make it spill proof and had to purchase another. I love this cup.

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Highly recommend

J May 24, 2025

Design and price are great. Haven't had a problem yet, use it daily. Bought extra for the office. Got three for the price of one pack of nice disposable cups. Will last a lifetime.

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Everything is great except the glue

Jeanne September 27, 2025

This travel mug is large, sturdy and at a great price. My major complaint concerns the cardboard advertising sleeve around it. It looks like it was super glued to the mug. I got the cardboard off, but can't remove the glue. Who's bright idea was that?

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Great, at first. Seems like temps drop faster.

KM December 26, 2025

Everyone has their own wish list for Travel Mugs, but here's what I found on this one: Pros: * Large Capacity: 20 Oz lets me put in my 16 oz Coffee, as well as creamer, %26 still stir it. * Tapered sides allows fit into car cup holders. * Large mouth allows it to get cleaned in the dishwasher without having to set it just so. * No handle = no fussing with alignment on the lid to the handle. * Lid protects the mouth opening, or gets out of the way, with minimal nose touching. * Screw on lid Doesn't leak, when sealed properly. (Not always easy). * Well insulated = I can't tell the temp of the contents from the outside. * Textured paint on the outside makes it easier to grip. (arthritic hands = Yay) Cons: * The lid sealed like magic on day 1 = No leaks even on it's side, but by day 4, it actually leaked when I simply closed the mouth cover, without even tipping it. OK, I thought I must have been applying too much pressure to a hot liquid, so it got forced out the seal. Each successive day, I got better at not overfilling it, but also stopped relying on it not to leak, as each sip ended up with a small drip on my lower lip, or drooling down the side. I just was about to toss the lid, then decided to investigate, first. There's a small white gasket at the edge of the threads, %26 it was super smooth, except one tiny spot near the mouth hole. It had become twisted there (No idea how that happens). I got a tweezer, %26 gently slid it under, to nudge the seal back to flat. OK, Solved that problem, %26 no more leaks (today), but not knowing how it got that way will leave me untrusting of it in future. * Despite not feeling the temp on the outside of the cup, the lid must be letting the heat out, cuz the coffee inside starts dropping temp fairly soon. I get about 2 hrs of Hot to warm coffee, then it drops off to luke warm or room temp. * Lid design is mostly good, but the part where your mouth goes is pretty thick. I've had thinner travel lids, %26 to me, it's easier to drink from thinner ones. Overall, if the seal hadn't gotten twisted early on, I'd have easily given 4 stars. Just gonna take some time for me to trust it again.

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Don't buy this one😒

Shadow May 12, 2025

I purchased one of your other cups and it's fantastic. I filled the other cup for the night. I accidentally knocked It down. I forgot about it and when I remembered it that cup also was one from Walmart it didn't have drop down the lid was still in tact and not a drop was on the floor.

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not a good cup

MrG May 13, 2025

It's okay but overall, a waste of money. It's top leaks and it's easy to break or crack. Mine's currently cracked and I've not dropped it on the ground or any place serious, just the sink. I can also taste metal, so I don't think this was a good buy. Spend a bit more and get a name brand.

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monica November 14, 2025

Liked that it fits well in cup holder, color is goid too. Dislikes poor lid, leakage, rim is entirely to deep. Doesn't keep fluids/coffee hot long enough

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Price History

Historical price data graph for Mainstays 20oz Stainless Steel Tumbler, Black

Recent Price Changes

Detailed price history for the past 90 days

Walmart.com Pricing

84 records

Walmart.com prices have ranged from $8.92 (Jul 15) to $8.92 (Jul 15) over the past 90 days. Current price is close to the 90-day average of $8.92.

Walmart.com price history for Mainstays 20oz Stainless Steel Tumbler, Black showing recent price changes over the past 90 days
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$8.92
No third-party seller price history available for this product in the past 90 days.

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