We may earn an affiliate commission from links. Tennis skirts have long been a staple of both the court and the street, but this season, they’re serving up more than just classic whites.

It’s worth noting that without a laboratory full of expensive machinery and repeatable, consistent conditions, it’s hard to objectively determine which window insulation kits insulated better.

Eric Charbonneau//Getty Images Later, she wore a gorgeous Johanna Ortiz pink midi dress with a skirt slit on a visit to Centro Nacional de las Artes Delia Zapata Olivella. Eric Charbonneau//Getty ...

They set out trying to find a solution and started experimenting with insulated hives. "Bees actually need a really warm environment to raise brood, around 34, 35 degrees Celsius," Mr Croker said.

Enter: the bubble skirt: A voluminous, almost cartoonishly circular frock featuring a gathered and cinched hemline that gives it its titular ‘bubble’ shape. So, what is the bubble skirt?