Michelle Monaghan wears Loewe LW40103U sunglasses in The White Lotus Season 3 (2025).

This is not confirmed but based on the extreme shadow and light on the front of the frame, the pair does match the Loewe frame.

The oval Loewe LW40103U sunglasses worn by Michelle Monaghan have a blue or purple frame, a gold Loewe logo on the temples and grey lenses. The color seems more blue in the image, but we've only been able tofind this pair in purple / violet color, but it might look lighter in the bright sunlight.

The blue Loewe LW40103U are hard to find. There is one pair on eBay.

The same model is available in the color Black or Tortoise at Pret A Voir.

Michelle Monaghan's character Jaclyn packed a lot of sunglasses for her trip, because she wears at least 3 different pairs at the Thai resort. 

Ultimate Guide to The White Lotus Season 3 sunglasses

Reference: Loewe LW 40103U Chunky Anagram