Rubber sole MEASUREMENTS: Heel measures approximately 1.18, Shaft measures approximately 16.14, Opening Circumference: 14.17. PERFECT FIT AND STYLE: Versatile, womens knee high boots have a simple, sleek upper made out of vegan pu and a high, stiletto heel adds some perfection to your look. Perfect for festivals and year round wear! ENDLESS OUTFIT COMBINATIONS: Outfit and pair these womens riding boots from dusk until dawn! From jeans to shorts, dresses and skirts of any length, these boots are a surefire way to top off any outfit. DURABLE LONG LASTING COMFORT: Effortlessly slips these on and off. A sturdy rubber outsole ensures maximum comfort through prolonged wear. FINEST QUALITY: Worn for every season, these womens knee high boots feature a comfortable cushioned insole that snuggles your feet to provide comfort with every step and back lace for a better fit to hold them up!