In the illustrated embodiment, the sidewalls 14 extend entirely around the periphery
of the soleplate 12 and protrude upwardly normal to the upper surface of the soleplate 12. The sidewalls 14 prevent a shoe engaged on the slippers wholesale from slipping laterally and longitudinally off the soleplate 12. The sidewalls 14 have heightened portions, including a "U"-shaped toe portion 30 at the forward end of the slippers wholesale 10, left and right intermediate wall portions 32, 32' and a "U"-shaped heel wall portion 34 at the rearward end of the slippers wholesale 10. All the sidewalls 14 are preferably molded integrally with the soleplate 12.