Society of Threads Men's Slim-Fit Non-Iron Dress Shirt

Macy's

Exact polka dot size and density match, Exact color scheme (white background, black dots), Long sleeve button-down shirt style matches, Overall design and form factor are consistent, High priority retailer (Macy's)

Men's Mini Polka Dot Fashionable Cotton Dress Shirt 617 White & Black

eBay - bestore_jk

Very similar polka dot size and density, Matching color scheme (white background, black dots), Long sleeve button-down shirt style matches

H&M White Slim Fit Dress Shirt with Black Polka Dots - Men's Size L

Depop

Very similar polka dot size and density, Matching color scheme (white background, black dots), Long sleeve button-down shirt style matches