JJF Shoes Win40 Conac Sexy Slouch Lace-Up Platform Stiletto Knee High Boots-5 Material: All Synthetic & Manmade Sole Boot opening measures approximately 16" around Fitment: True to size. Features: Round toe, slouch shaft, stitching details, lace up with grommet decor at the back. Finished with platform, non-skid sole and cushioned foot bed, soft interior lining will keep you warm and comfy, and full side zipper closure for easy on/off. Heel 3.50", Platfrom 0.5", Back Shaft w/o heel 13", Front Shaft w/o heel 16", Top Opening Circumference 16.00" ( Measurements may vary slightly). Please note that the fit and color may vary slightly according to the style and personal references.