You probably haven't thought about a boob tube since the early '00s. Carrie Bradshaw wore them - most notably in the episode just before the gang flee New York, leaving behind our heroine's disastrous affair with Mr Big, for the (Brazilian) wax haven of LA - and so did Rihanna, Victoria Beckham, Britney Spears and Paris Hilton.
It takes a certain chutzpah to pull off a bandeau. Nevertheless, as temperatures are hotting up, the celebrities are going there. And by there, I mean 2004, the year when a stretchy piece of fabric first counted as a top.
Laura Harrier packed hers for the Cannes Film Festival, styling her stretchy black boob tube with the perfect partners for something that exposes a lot arm, shoulder and collarbone: a flaring gingham skirt and pointed ballet flats. Chic.
Stylist Monikh Dale has also jumped on the bandwagon, wearing the ultimate version from Raey, which doesn't cling so much as glide over the body - a grown-up way to tackle the tube. Styling it with elevated flip-flops and baggy cargo pants à la SJP, it feels like the ideal off-duty outfit for when the heatwave arrives next week.
Don't forget your sun cream. You might not get tan lines but burnt shoulders = not so sexy in the city.
www.arket.com
Arket's boob tube has a stretchy back for extra comfort-factor.
www.cos.com
Carrie and co would approve of this jersey bandeau from COS.
www.matchesfashion.com
Monikh's boob tube is this easy style from Raey, a little more expensive but worth the investment if you want to breeze through the heatwave.
www.thereformation.com
Reformation has several boob tubes but this one's structured neckline makes it a statement.
www.harveynichols.com
No one does stretch-knit boob tubes quite like Gimaguas, the brand loved by EmRata.
www.net-a-porter.com
Paris Hilton loved a boob tube with a handkerchief hem like this style from Faithfull The Brand.