From Alegria, the Keli Crackle Leather Clogs feature: Crackle leather upper Padded heel collar for soft cushion and to prevent heel form slipping Slip on with elastic twin V gore  Leather lining Footbed designed to mold to your feet Footbed is replaceable and removable, which allows for the use of a custom orthotic Slip resistant, non-marking synthetic outsole American Podiatric Medical Association (APMA) Accepted Approx. 1.25" heel Imported.