MATERIALS UPPER Vegan nappa corn: Cotton 29% + Polyurethane 71% with 68% Bio Based Mass Content. LINING 100% organic cotton. RENEWABLE INSOLE 60% recycled thermoplastics recovered from the automotive factories + 40% PU foam and 100% organic cotton cover. OUTSOLE 30% natural and 70% synthetic rubber mix. LACES Certified organic cotton. REINFORCEMENTS 65% recycled thermoplastics, 35% wood chips recovered from the carpintery industry. PACKAGING Recycled box and paper/plastic free & fully biodegradable bag. PRODUCT CARE Not waterproof product. Use a damp cloth to clean your sneakers. We don't recommend washing your SAYE in the washing machine. If you still do so, we are excluded from any liability.