Why do MLB players wear shirts under their jerseys?

Major League Baseball (MLB) players wear shirts under their jerseys for several reasons:

  • Protection: The undershirt provides an extra layer of protection against the sun, dirt, and sliding into bases.
  • Comfort: The undershirt absorbs sweat and helps to keep the jersey dry and comfortable.
  • Modesty: The undershirt provides a layer of modesty when sliding into bases or stretching to field the ball.
  • Performance: Some players believe that the undershirt helps to wick away moisture and keep the body涼爽 and dry, enhancing performance.
  • Style: The undershirt can be used to add personal style to the uniform, with players often wearing undershirts with unique colors or designs.
  • Why do MLB players wear shirts under their jerseys during the winter?
    • To provide extra warmth and protection against the cold.
  • What type of shirts do MLB players wear under their jerseys?
    • Typically lightweight, moisture-wicking shirts made from materials like polyester or spandex.
  • Are MLB players required to wear undershirts?
    • No, but it is a common practice among the majority of players.
  • What color undershirts do MLB players wear?
    • Undershirts can be white, gray, black, or other colors, depending on player preference.
  • How many undershirts do MLB players wear in a game?
    • Some players may change their undershirt multiple times during a game to stay dry and comfortable.
  • Under Armour HeatGear® Armour Compression Short Sleeve
  • Nike Pro Dri-FIT T-Shirt
  • Adidas Techfit Compression T-Shirt
  • Champion Performance T-Shirt
  • Hanes Sport Cool DRI T-Shirt

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