We use sustainable products that are as environmental friendly. In regards to our sandals themselves, our leather skins all come from Italy - we only purchase 'Natural Leather' & finish it off with a special varnish to protect the leather - no dye, no artificial substances. MATERIALS All our designs are available in either leather or vegan pleather. If you wish to receive a VEGAN version simply contact us for more details. SOLES Our soles are made from 'Press Rubber' ( Recycled Rubber ) which is light & supple yet supportive & comfortable.