Effortlessly fusing comfort and fashion, the Crocs Classic Overpuff Clog features a unique, lightweight, streamlined EVA upper for a modern twist. With a minimalist, slip-on style, a rubberized outsole provides better grip. This clog is made from an EVA upper with a Croslite Footbed, Dimple Details, and a Rubber Sole. A strapless mule, the Classic Quiet Clog is made from a dimpled EVA upper. Underfoot, cushy Croslite foam footbeds keep you comfortable while embossed logos signalling Coloradoan heritage adorn the heels. These outdoor-ready clogs come with a foam upper and Croslite footbed while the outsole is coated in grippy rubber. Synthetic Upper & Sole.