“Loud shirts” as we call them soon became Truman’s Key West uniform by his fifth vacation to Key West. At first, Harry Truman would still dress in slacks and dress shirts- even when fishing. He soon caught up with the locals and found how much more comfortable it is to wear light weight sport shirts.
Once Truman was seen wearing these shirts, companies from all over would send him packages full of sports shirts. Truman would pick out the ones he liked, and then gave the rest to his staff to wear.
The second Truman would step foot on Key West he and his staff would ditch the slacks and button downs and change into their “Key West Uniforms”.