Volcanic rock in the fibers of this ultra-breathable shirt provide natural odor resistance, moisture wicking, and UV protection to keep you comfortable. Revolutionary FlashDry technology dramatically improves drying time and breathability on long runs. Body-mapped mesh ventilation panels target areas that tend to get the hottest to prevent overheating. The GTD Short-Sleeve Tee features a wide crew-neck collar for comfort; princess seaming for a flattering fit; reflective trim/logos for increased visibility; and a drop-tail hem in back for added coverage. Shell: 53% polyester, 47% polyester closed-hole mesh fabric with FlashDry fibers. Panels: 100% polyester mesh fabric. Imported.