Fourever Funky Stars Faux Sheepskin Suede Flat Mid-calf Treaded TPR Boots Suede Heel measures approximately 0.5 inches" Material: Faux suede (man-made) Shaft Length: 12.5" (including heel) Top Opening Circumference: 15" (approx) Sole: Treaded TPR What is a TPR Sole? A: TPR stands for Thermo Plastic Rubber. Heel Height: 0.5" (approx)