This lightweight pullover locks in color, wicks moisture, resists snags and has an amped up colorblock look. 4.1-ounce, 100% polyester yarn-dyed jersey with PosiCharge technology (Electric Heather) 4.7-ounce, 100% polyester jersey with PosiCha Sport-Tek PosiCharge Electric Heather Colorblock 1/4-Zip Pullover. ST397