Birki's Women's Super Clogs,Pink,39 M EU / 8-8.5 B(M) US Synthetic 100% weather proof upper with a seamless single-mold construction. Removable and replaceable cotton-lined cork footbed that provides all-day comfort. Can be sterilized up to 140 Fahrenheit and is resistant to most chemicals. Slightly raised back with a heavier sole for improved slip resistance. Polyurethane outsole delivers great shock absorption and abrasion resistance.