OTZ Shoes Women's Semis Suede Flats Shoes Synthetic The Minimalist last provides a slimmer contoured fit. TPR (Thermo Plastic Rubber) outsole CORKminimalist footbed made from 5mm PolyU antimicrobial foam with a cork veneer Laser cut perforated goat leather (suede out) upper The OTZ tattoo is debossed on the lateral side and the OTZSHOES logo is printed onto the cork cover.