New Era Youth Diamond Era 2-Button Jersey. YNEA221An exceptional training or on-field piece, this moisture wicking, snag-resistant jersey combines Diamond Era fabric with a smooth interlock body., 5.9-ounce, polyester interlock double knit body, 5.3-ounce, 100% polyester Diamond Era jacquard at neck, back yoke and side panels, Heat transfer label for tag-free comfort, Raglan sleeves, Engraved New Era dyed-to-match buttons, Embroidered New Era flag logo on left sleeve, Shirttail hem