A portable foot operated exercise device includes a somewhat elastic fabric base having spaced apart foot sleeves on an upper surface thereof and removable sliding pads on the lower surface thereof. According to the presently preferred embodiment, the base is made of NEOPRENE, and two pairs of sliding pads are provided. One pair is made of hard plastic and the other pair is made of fleece or a fleece-like material. The pads are preferably provided with a VELCRO backing and the base is preferably provided with mating VELCRO on the lower surface beneath the foot sleeves.