Mens fashion hasn’t changed much since the 1920s, especially business and formalwear. A notable exception: casual wear.
At right, note this gentleman’s linen knickers and two-tone spectator shoes, trim-fitting V-necked sweater and bow tie. (Note: several designers, most notably Armani, unsuccessfully tried reintroducing knickers in 1996 as golf wear.) Bow- and standard windsor-knot neckties were equally popular. Some ties were made of knit cotton and had squared-off bottoms, a look successfully brought back in the 1970s. This casual look was topped off by an English driving cap or a summer-weight brimmed hat, such as a Panama straw.
Sporty styles for warm weather included the yachting look: a navy blazer with gold buttons, white slacks and a yachting cap, and the Palm Beach suit of tropical weight wool or linen, in white or ivory.