This is Jacob's (Jaeden Martell) Screen Worn Wardrobe Set from Knives Out (2019).Change 4Scene 157, 199-202
Button-Front Coat (Ralph Lauren), Sweater Vest (Brooks Brothers) & Long Sleeve, Button-Front Shirt (Brooks Brothers).
These items were received from Media Rights Capital and include an Official Studio Certificate of Authenticity from VIP Fan Auctions. As a bonus, the Studio provided Jaeden's socks listed on the official costume tag which weren't shown or included in the original auction or purchase price.