Noble Mount Womens Cable Knit Indoor Ballet Slippers Imported Body of slipper is 100% acrylic. Super soft faux shearling polyester interior. Comfortable, lightweight, yet warm. Slip-on ballet-style slipper. Soft anti-skid sole. Perfect for hard slippery surfaces. Stylish cable knit design on outside. Size Medium fits up to size 7-8, Size Large fits up to size 9-10