The DC Manteca 4 Zero Waste Men's Shoes are among the most sustainable shoes this brand has produced. * upper material: recycled textile and synthetics * lining: recycled NatureTex® mesh for sustainable breathability for added comfort * sole: abrasion-resistant rubber outsole made from recycled materials * anti-slip sole with PILL PATTERN™ pattern * insole: EVA * lightly reinforced tongue and area around the ankle ensures comfort * ventilation holes for better breathability * lacing * reinforced heel and toe