SWEAT-WICKING VENTILATION. The Nike Zonal Cooling Men's Striped Polo features raglan sleeves and the power of Dri-FIT technology to help you stay comfortable and dry. Nike Zonal Cooling technology enhances ventilation where it's needed the most. - Nike Zonal Cooling technology helps keep you cool without distraction. - Standard fit provides a relaxed, comfortable feel. - Raglan sleeves allow natural range of motion. - 2 button placket provides a customizable fit. - Fold-over collar for classic polo style. - Circular-knit fabric is lightweight, stretchy and enhances breathability by placing an open-knit pattern in high-heat and high-motion areas. - 100% POLYESTER