Wimbledon isn’t just a host to great tennis—it’s also where many of the most famous people in the world are at their most stylish. David Beckham has been known to embrace his British roots with strong tailoring, while even wildman Bear Grylls put in the extra effort to look sharp and civilized. Meanwhile, A-Lister Bradley Cooper has seemingly decided to hell with all that in favor of a much more casual look.

His first day at the All England Lawn Tennis and Croquet Club (a name that just sounds dignified), Cooper wore a Roger Federer baseball hat, sunglasses, and a gray T-shirt, navy pants, and black Nike Flyknit Free sneakers. Since 2014 there’s been no official dress code at Wimbledon (merely guidelines), but there still is a sense of occassion than many Brits have embraced. So while Cooper looked fine for a Saturday in New York, his get-up simply felt a little underwhelming next to, say, Jude Law’s off-white double breasted suit.

Jude Law and his girlfriend Phillipa Coan still looked in the first flushes of love as they gazed adoringly at each other while at Wimbledon on Friday

Elsewhere on the court, Mr Douglas Booth was WERKIN’ that grey suit – #CorBlimey. To say the actor was looking well would be an unforgivable understatement. 

Katherine Jenkins and Andrew Jonathan Levitas in the royal box on day eleven of the Wimbledon Championships

David Beckham wearing Victoria Beckham the Vb Tortoiseshell Sunglasses

Chiwetel Ejiofor  meanwhile went for a classic look as he was dashing in a three-piece navy suit with a white shirt and grey tie, with the ensemble rounded off with brown brogues

Here, Horan’s slim-fit dark teal suit meets the occasion’s formal requirements while the combination of a granddad collar and classic kicks makes sure he doesn’t grow up too fast.

Ian Poulter and George Ford shake hands in centre court on day seven of the Wimbledon Lawn Tennis Championships

We’re used to seeing him in khaki and combats.

But adventurer Bear Grylls is certainly just as comfortable in formal surroundings as he is out in the wilderness as he put on a dapper appearance at Wimbledon. The Eton-educated writer and TV presenter looked smart in a grey Giorgio Armani suit, blue shirt, tie and a pair of sunglasses.

Dermot O’Leary and Dee O’Leary.