They're American summer classics, from gingham shirts to knit ties to seersucker swim trunks. The twist? This year they're European through and through.
LEFT TO RIGHT: Brunello Cucinelli striped shirt, $405; Bergdorf Goodman, (800) 558-1855. Paul Smith London gingham shirt, $210; (646) 613-3060. Boss Selection striped shirt, $275; hugoboss.com.