What did American men wear in 1955?

Clothing for men has not changed a great deal since the 1950s. Men (at least white collar workers) more often wore a suit to work. And hats were much more often worn with suits than now. Few men wore shorts for leisure activities. Other than that you might be hard pressed to find much difference. Shirts, slacks etc. usually had to be pressed as there were no permapressed garments and colors were not as bright as today.