4 1/2" Wedge Platform Lace-Up Stretch Thigh High Boot, Side Zip Approximate calf circumference: 12" Approximate shaft height: 22.7" 4 1/2" (114mm) Wedge Platform Front Open Lace-Up Stretch Thigh High Boot Featuring w/ Hook-N-Loop straps , Full Length Inner Side Zip Closu Approximate calf circumference: 12" Approximate shaft height: 22.7"