Midsole foam uses approximately 3% bio-based content made from renewable sources to help reduce our carbon footprint ENCAP midsole cushioning combines soft foam with a durable polyurethane rim to deliver all-day support Vamp, collar and tongue mesh are 100% recycled polyester Rubber outsole with 5% recycled rubber Available in extended width sizes #586 in Clothing, Shoes & Jewelry ( ) #17 in