Trivia: What were the first baseball hats made of?
Straw
Plastic
Cardboard
Tin
The correct answer is Straw
So why is this answer correct? : In 1849, the New York Knickerbockers adopted the first baseball team uniforms, including hats made of straw — the dapper summer style you might wear while picnicking in the park. A few years later, they switched to hats made from merino wool, which had the crown and curved bill that define baseball caps today. The caps retained the shape, and over time adapted to today’s modern style.