From TOMS, the Abby Knot Detail Espadrille Platform Slide Sandals feature: Woven textile upper Knot detail Softly squared toe shape Slip-on styling Textile lining Non-removable Insole Custom CloudBound™ foam insole for all-day comfort and support Insole made with 40% eco content (20% Recycled Polyurethane, 10% Bio-oil, 10% Recycled rubber) Rubber outsole Approx. 1.25" espadrille platform Imported.