Vulcanized sneakers made from amazonian jute. silk osklen made in brazil on the outer side. lace-up design featuring cotton laces. lining and insole in cowhide leather. flatform rubber sole stitched to the upper featuring osklen’s exclusive design, produced with at least 10% recycled material. this product carries all three of osklen’s sustainability labels: regenerate life, respect our people, and re-design waste.