From Dansko, the Pep Knit Slip On Sneakers feature: Recycled mesh upper treated with 3M Scotchgard™ for stain resistance Slip on with front pull loop Recycled textile lining with anti-microbial for moisture management and odor control Dri-Lex® recycled textile socklining treated with anti-microbial for moisture management and odor control Removable footbed with energy-return EVA features Dansko Natural Arch Plus™ technology, heel shock absorption pad and Propel forepart Accommodates most standard and custom orthotics Lightweight EVA midsole Lightweight rubber outsole for long-lasting wear Approx. 1.8" heel height APMA Seal of Acceptance Imported.