Sport-Tek® - Dri Mesh? Short Sleeve T-Shirt. K468 Moisture wicking double-layered poly mesh provides superior moisture control for the most active circumstances. When you are at peak performance level, so is Dri-Mesh Technology. Fabric/Style: 3.5-ounce, 100% poly double mesh; double-needle on armholes, shoulder, bottom hem and side vents. Adult sizes: XS-4XL