Fabric: Our #1 performance tee fabric offered in a color-locking moisture-wicking polo to expand your uniforming options. 3.8-ounce 100% polyester interlock with PosiCharge technology Self-fabric collar Removable tag for comfort and relabeling Taped neck Elongated 2-button placket with dyed-to-match buttons Set-in open hem sleeves Due to the nature of 100% polyesterperformance fabrics special care must be taken throughout the printing process.