Augusta Sportswear Unisex Full Button Baseball Jersey ul)96/4 polyester/spandex with color secure® technology that helps prevent dye migration. Micro-interlock smooth 100% polyester knit side inserts. Moisture-wicking performance. UPF 50+ protection. Four-way stretch fabric for increased mobility. Lightweight knit. Set-in sleeves. Contoured bottom. Tear away label.