Known for superior breathability, these polos not only wick moisture, they fight odor.; 3.9-ounce, 100% polyester mini pique; Tag-free label; Flat knit collar; 3-button placket; Dyed-to-match buttons; Double-needle sleeves and hem; Side vents; *Due to the nature of 100% polyester performance fabrics, special care must be taken throughout the screen printing process.