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 Flat knit collar Removable tag for comfort and relabeling Taped neck 3-button placket with dyed-to-match buttons Set-in, open hem sleeves Due to the nature of 100% polyester performance fabrics, special care must be taken throughout the printing process.