Breckelle's BRITNEY-16 Spike Neon Studded Chunky High Heel Lace Up Ankle Boot Bootie Synthetic Synthetic sole Shaft measures approximately 9 from arch Platform measures approximately 1.75 Synthetic upper, synthetic sole Heel measures approx. 5.25" w/ 1.75" platform, 8.5" shaft, 9" circumference Non-skid sole and cushioned footbed.