Scholl Gary Navy Hounds Tooth Men's SlippersThe outsole has side wall stitching which stitches the upper to the sole to give the shoe extra durability. Being a TPR outsole means you can pop outside with these on and not worry about damaging the sole. The removable workforce orthotic insole gives you underfoot comfort and support. Soft Fabric UpperFabric liningTPR outsole Removeable Work Force footbed.