Crocs Duke College Classic Men s/Women s Clog Show off your pride and college sports fandom with the Duke College Classic unisex Clog by Crocs. The Iconic Crocs Comfort material offers lightweight, flexible cushioning and a gentle massaging sensation, while the well-ventilated upper circulates air for a cool, dry fit in these Blue Devil Crocs. Synthetic upper Slip-On w/heel strap Iconic Crocs Comfort footbed EVA outsole Color: blue