Naturalizer rena riding boot - US 8.5 New Product Details Comfort put simply. This knee high riding boot is going places with its decorative straps, buckle accent and side zip closure for easy entrance. Get there beautifully. Knee high riding boot with polished straps and buckles Leather or leather/suede upper with an almond toe Side zip closure Wraparound straps and buckle details Contour+ technology for a premium fit and all-day comfort experience Soft fabric lining Removable insole, non-slip outsole 1 1/4" block heel 14.8" boot shaft; 14.6" calf circumference Note: Measurements based on size 6 boot. For each half size larger, shaft height increases by .12", circumference by .20" Consciously packaged: 100% of our shoe boxes are made of 80% recycled paper + soy-based ink Designed using sustainable materials