Crocs Classic Marbled Clog. This slipper from Crocs is really lovely! All Crocs Classic Marbled Clogs have their own unique colour pattern and therefore no slipper is the same as the other. Crocs Classic Marbled Clog is, as always, feather-light with the usual strap in the back that allows you to keep the speed when you whiz through the day. The ventilation holes at the front of the Crocs air your feet and keep them happy and airy all day. Crocs Classic Marbled Clog is a really good choice when you want to be unique, comfortable and a little prettier than everyone else.