Unlike pyjama dressing and black tie couture, this is a fashionable phase we can get behind, because we practically invented it.

Sure Sporty Spice in her Adidas Originals pants were a major fashion moment of the '90s, but we are the country that gave the world Carl and Roberta Williams and Kath & Kim (and Kel Knight). Now these daggy characters epitomise fashion's favourite look.

What was once the uniform of suburban shopping centres has caught the attention of tastemakers, fashion labels around the world and America's royal household, the House of Kardashian West.

Over the weekend Kim and Kanye illustrated how high-fashion has jumped the shark. The couple were en route to dinner, presumably at their local Sizzler given the way they were dressed in expensive trackies, fur and undone sneakers.

Victoria Beckham is also a fan. The artist formerly known as Posh Spice turned successful fashion designer once famously said "I can't concentrate in flats" before last year officially retiring from her position as six-inch heels spokesperson. Now she's also relaxed her dressing standards telling The Telegraph, "Clothes have to be simple and comfortable". Last week she was photographed at New York Fashion Week wearing a tracksuit and Adidas sneakers combination with all the chutzpah of a petty criminal strolling into her first mention hearing.

Despite Proenza Schouler showing an "anti-ease collection" during NYFW, because: "We were sick of everyone talking about 'ease' in fashion", and founder Jack McCollough urging people to "get out of your pyjamas", right now, comfort trumps chic.

However the humble pair of "trackie dacks" is the fashion equivalent of President Trump: confusing, wrong on a number of levels and at risk of being frumpy.

Like leggings before them, sweatpants have infiltrated the wardrobe rotation and Instagram accounts of a new generation of influencers, like Kendall Jenner, thanks, in part, to fashion house Vetements that has made its mark by repurposing streetwear and loungewear into luxury items.

Jenner was spotted in a white Champion tracksuit last month by the Paris-based collective team that cost about $2000. The look, usually seen on amateur footballers on their annual footy trip to Shepparton, has since sold out.

Vetements is also partly responsible for the rebirth of Juicy Couture, a Californian label made famous by Paris Hilton in her heyday for terry towelling twin-sets. The company closed its stores in 2014. Now thanks to a Vetements collaboration it's back like herpes and available at Urban Outfitters.

Vogue cautions of this development: "Please invest wisely this February."

But considering everything Noughties is back, albeit with an expensive, celebrity endorsed twist, try the trackie trend with sneakers, with heels and even with fishnet tights underneath, because, you may find, as Hilton once sang, "the stars are blind...but maybe I'm perfect for you".