Platform Lace Up Boot - Cute Flatform &ETH; Stacked Ankle Bootie Chunky Heel - YRU Tanq Black Boot Synthetic Synthetic sole Shaft measures approximately 11.75 from arch Platform measures approximately 3.00" Synthetic upper, synthetic sole Measurements approx: Heel 4" w/ 3" platform, 11.75" shaft, 10.5" opening circumference. Non-skid sole and cushioned footbed. Fit: Runs true to size.