Michelle Monaghan wears Tom Ford FT1039 Joanna sunglasses in The White Lotus Season 3 (2025).
The oversized square Tom Ford Joanna sunglasses have a black and silver frame, with the metal arms forming a T on the front of the frame.
Get these sunglasses on Amazon for $231 or at JomaShop for $228, or find them at Farfetch. They can also be easily found on eBay.
Michelle Monaghan wears the Tom Ford FT1039 Joanna sunglasses very briefly in the opening scene of Episode 1 of Season 3 of The White Lotus, when all the characters arrive on the boat.
Later in the series she will probably wear the Tom Ford glasses again.
In the same series Michelle Monaghan also wears Loewe sunglasses, and a pair of yet unidentified yellow sunglasses.
Reference: Tom Ford FT1039 Joanna