What is Sunbrella trend that has made a comeback in Europe amid heatwave?

Amid intense heatwaves in Europe, "Sunbrella" trend, which involves using anti-UV umbrellas designed specifically to provide shade from the sun, has made a comeback. Lewis Hamilton was spotted with a Ferrari-red umbrella at the Austrian Grand Prix. The trend also gained traction in fashion, with actors James Marsden and Mike Faist seen carrying large cream umbrellas during Paris Fashion Week.