Oregon Ducks Colosseum Athletic Gridlock Windshirt. This Oregon quarter zip long sleeve is made of 100% Polyester to ensure that perfect fit and athletic feel. The rival poly shirt has a unique geometric grid all-over design with rubberized print Ducks logo on the left chest. The windshirt is both wind and water resistant and is perfect on the field or watching Oregon play ball. Show your team pride every day! Go Ducks!!! Officially licensed Oregon Ducks fan gear.