The Columbia Omni-Wick Shotgun 1/4 Zip pullover is the perfect lightweight layer to wear on or off the course. The pullover features Omni-Wick technology that wicks sweat away from the body to help keep you dry and cool. 100% Polyester. Embroidered Purdue logo. Omni-Shade UPF 30 sun protection. Seamless zippered sleeve pocket. Contrast cover stitch and zipper.