The Dazzling $4 Iridescent Mug Shoppers Say Is “Essential” (and Keeps Selling Out)

published Jan 18, 2024
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The entrance to the Walmart department store.
Credit: Alexanderstock23 / Shutterstock

Every hot beverage drinker has a favorite mug, and it’s a favorite for a reason. Maybe it’s just the right size for that first cup in the morning. Or maybe the handle feels better in your hand compared to every other mug in your collection. Whatever the case may be, there’s always a fave — and soon it’ll be this $4 one from Walmart because it’s just so darn pretty.

Walmart introduced the Mainstays iridescent glass mugs to its collection back in 2021 and they’ve continued to be a bestseller ever since they first hit shelves. The mug comes in a color-shifting clear or an amber hue and is similar in shape to those stainless steel camp mugs you take with you on your adventures. 

“These pictures don’t do them justice; they’re so much prettier in person,” the creator behind the Walmart Gems Instagram account wrote in a caption about the mugs back in 2021. “Plus, they’re made with borosilicate glass, which helps keep drinks warm or cold for longer. I’ll take one of each please!”

And it seems that after such a warm welcome, Walmart knew the Mainstays mugs were here to stay. 

“My favorite coffee mug,” one Walmart shopper titled their review. “This is seriously just adorable! I love the iridescent rainbow color that I see within this beautiful cup … it’s kind of stunning, to be honest, more than I ever expected. I’m super happy with this cup which is strong and sturdy and is heat-resistant as well.”

The mugs can hold up to 18 ounces of your favorite beverage (hot or cold) and are microwave-safe. Walmart does recommend hand washing, though, to keep that iridescent sparkle intact. 

And at just under $4 each, you can replace all your old chipped and stained mugs with an entire set of amber or clear (or mix and match!) mugs. These mugs keep selling out both in Walmart stores and online, so grab them if you see them and watch your new favorite mug sparkle and shine with every sip.