While Spanx sells plenty of popular pieces, this quarter-zip truly zips right off the shelves.

Oprah’s “favorite” AirEssentials Half Zip ($128) and Wide Leg Pant ($138) are Spanx’s “most waitlisted” items, having racked up a waitlist of over 20,000 customers hoping to score the style in black, per the brand.

And on Tuesday, the brand finally restocked the oh-so-soft styles is all sizes from XS to 3X.

Shoppers aren’t the only ones obsessed, as Oprah’s raved about the set on two consecutive “Favorite Things” lists — a rare accolade for a product.

On her 2022 list, she dubbed the design her “new leisure suit,” writing that the “perfectly loose-and-lightweight fabric is like buttah!”

And she bestowed the brand with even more coveted praise on her 2023 roundup, gushing, “Wow. Wow. Wow … I wore it in a photo shoot for ‘O Quarterly’ and never looked back. This is the most comfortable fabric.”

In addition to the freshly restocked black set, the two-piece combo also comes in brown, green, blue, navy and — the most recent addition — light gray heather.

And for those who prefer a more office-ready look, the same breathable, four-way stretch fabric just launched in three dress silhouettes: the Side Stripe Tank Midi Dress ($138), Tank Midi Dress ($138) and Tie-Waist Tank Dress ($138).

The AirEssentials collection isn’t the only Spanx line with Oprah’s stamp of approval, as she also gushed about the brand’s smoothing Perfect Pants on her 2019 list.

Page Six Style put the Perfect Pant Kick Flare ($148) to the test last week, with editor Elana Fishman writing, “They really do feel like leggings you can get away with wearing to work or out to dinner and drinks.”

Whichever style you plan to try, just be sure to shop fast before they fly off the shelves once again.