From Dansko, the Kaci Molded EVA Clogs feature: I'm green™ bio-based EVA upper made from over 50% plant based materials APMA Seal of Acceptance Easy clean Slip on I'm green™ bio-based EVA removable footbed made from over 50% plant-based materials featuring Dansko Natural Arch® technology for added arch support Accommodates most standard and custom orthotics Dri-Lex® socklining for moisture management and Cleansport NXT™ organic odor control Patented slip-resistant rubber outsole suitable for dry, wet and oily/wet surfaces Approx. 1.6" heel height Imported.