Ever since Katie Holmes blew us all away when she casually wore that Khaite sweater set (which included a cashmere bra) to hail a cab last year, the fashion crowd has been fully enamored with the concept of bra tops. And now that summer weather is here, these tiny little tops have taken over our Instagram feeds, and we couldn’t help but notice that they’ve been flying out of stock at various retailers. The most popular iterations are made of sweater or heavy knit material (so as not to be mistaken for an actual bra), but people have also started wearing bikini tops as tops as of late. Wearing underwear as outerwear can be deemed controversial, but it’s all about how you style it (more on that below). Consider it the top-half version of leggings as pants.

You can wear a bra top on its own if you’re brave, but the most common outfits we’ve been seeing are bra tops with high-waisted pants, shorts, jeans, or sweats, and a matching cardigan, denim jacket, button-down, or oversize blazer. Consider it the perfect summer trend if you don’t have AC. With that, keep scrolling to see how stylish women are wearing them, and shop some of our favorite bra tops that are still in stock.

It’s perfect and on sale.

We want this one too, obviously.

If your jaw just dropped, you’re not alone.

If you want to wear a bra top and you’re a minimalist, this one’s for you.

As summery as the trend gets.

Opt for a sporty version.

The brand that started it all.

This is the chill version of the trend.

It’s too good to wear just as a swimsuit.

Just in case you prefer something with a little extra coverage.

We fully expect to see this one on our Instagram feeds soon.

The one that goes with everything.

This one is quickly becoming a cult favorite.

Are you picturing Kendall Jenner wearing this under a white button-down? We are.

This entire outfit is just wow.

This sporty, textured option is $22 well spent.

Stunning.

A sports bra that’s this chic works perfectly as a top.

Next up, the affordable lingerie brands that still feel high-end.