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Double denim continuously toes the line of the fashion world, jumping into trend every few years or so. But is now the time for the classic blue-on-blue look to return?

While the term was coined in the 1950s thanks to Bing Crosby’s head-to-toe denim ensemble, the nineties and noughties claimed double denim as a staple look at the turn of the century. Who can forget Britney Spears and Justin Timberlake adorning a denim-on-denim-on-denim look for 2001’s American Music Awards?

While we’re not running to get our hands on JT’s denim cowboy hat, there’s no doubt that double denim is making a triumphant return.

Nostalgia for the nineties and noughties is seeing a return to bold fashion choices, from knee-high socks, sweater vests, and boot cut jeans. We should also anticipate the return of denim jeans paired with a denim jacket or shirt.

Now, new data has found the UK’s double-denim capital. By analysing Google searches across more than 550 denim jeans and jacket styles in the UK’s 40 most populated towns and cities, the retailer identified where people were most likely to build a double-denim outfit. The results were used to create the UK’s first double denim index.

Who are our double denim champions?

People of Wales rejoice, as the Welsh capital is not just the heart of the proud country, but also the homeland to proponents of double-denim fashion. The index found that Cardiff had had the most similar search volumes per capita between denim jeans and denim jackets, meaning that they’re most likely to slip both on at the same time.

Hitting the number one spot, Cardiff achieves a double-denim score of 100 with the data predicting that people are 208 per cent more likely to wear double denim. It shouldn’t come as a surprise, Cardiff is a great location for a casual day out. So whether you visit the Millennium Centre or go for a walk along Cardiff Bay, your denim fit will fit right in.

The people of Cardiff aren’t the only double-denim supporters in the UK. Taking the second and third spot on the double-denim index are Southampton and Luton. This city and town achieved a double-denim score of 82 and 69, demonstrating their love for doubling down in quality cotton products. So the next time you’re down at the docks or heading to the airport, get ready to see some blue-on-blue action.

I’d rather mix and match

Of course, the nineties and noughties’ trend hasn’t caught on everywhere. Some towns and cities are saying no to matching garments. Manchester hits the bottom of the double denim index with a score of zero, demonstrating they would rather wear just one denim item at any one time.

Only slightly less keen on the idea of double denim is Peterborough and Bolton, where they only achieve a double denim score of four and five. Just know that when you visit, your nineties wardrobe may not be the best thing to pack.

Get ready for turn-of-the-century fashion to make a comeback in the coming year and the likelihood that you’ll see some more double denim when you’re out and about. It’s time to get out your denim jeans and jackets (and cowboy hat if you have one) and adorn the famous outfit.

Lina Ayers