From Dansko, the Sonja Leather Cogs feature: Leather upper Padded instep collar for comfort when walking Roomy reinforced toe box for protection with plenty of 'wiggle room for your toes PU inner frame to reduce torque and provide stability Leather lining Synthetic outsole approx. 0.50" platformheight approx. 2" heel height: feels like a 1.50" heel Imported.