Slugger Baseball Jersey - Moisture-Wicking Polyester is designed for reliable performance in baseball. 100% polyester propelit micromesh wicking knit body. Key features include 92% polyester/8% spandex wicking pinhole mesh side panels and sleeve inserts; Wicks moisture; Tag-free label; Full-button jersey; Buttons spaced for easy embellishment; Contrast color pinhole mesh inserts.