New Era Diamond Era Full-Button Jersey. NEA220Created from the same Diamond Era textured fabric as our iconic baseball caps, this moisture-wicking, snag-resistant jersey is designed for on-field performance, but is also perfect for fans., 5.3-ounce, 100% polyester Diamond Era jacquard, Heat transfer label for tag-free comfort, Raglan sleeves, Underarm gussets, Engraved New Era dyed-to-match buttons, Buttons placed for ease of embellishment, Embroidered New Era flag logo on left sleeve, Shirt tail hem, Woven New Era jock tag at hem