These shirts are all very light weight and suitable for summer wear.
Club Cardin Casual Check
65% Polyester 35% Cotton
Size vintage M, meaning quite small probably 15 1/2 neck, 33 or 34 chest
$25
Italian Piattelli Uomo Tuxedo w/ Striped Front
unknown fabric seems wrinkle resistant
Size 15 1/2 neck, 34 chest
requires cuff links
$35
Sears Green Dress Casual
Probably a polyester and cotton blend
Size vintage M, meaning quite small probably 15 1/2 neck, 33 or 34 chest
$25
Christian Dior Dress Shirt
100% Cotton
Size 16 neck, 33 chest
requires cuff links
$35