Acorn Spa Women's Slip-On Slipper Leather Broad footbed gives feet plenty of room to relax Non-slip TPR outsole provides excellent traction Memory foam midsole adjusts to shape of your foot for a custom fit Stitch-and-turn construction ( upper is turned inside out and stitched to outsole, inside out, n turned right side out) helps make shoe soft and flexible polyester upper, upper lining and insole, EVA midsole, thermoplastic rubber outsole