Sport-Tek PosiCharge Tri-Blend Wicking Polo. ST405This ultracomfortable polo combines moisture-wicking performance, unbeatable tri-blend softness and PosiCharge technology to lock in color., 4.4-ounce, 75/13/12 poly/cotton/rayon jersey with PosiCharge technology, 4.6-ounce, 75/13/12 poly/cotton/rayon jersey with PosiCharge technology (Black Triad Solid), 4.7-ounce, 75/13/12 poly/cotton/rayon jersey with PosiCharge technology (White Triad Solid), Tag-free label, Self-fabric collar, 3-button placket with rubber dyed-to-match buttons, Set-in, open hem sleeves