The upper of the shoe is made of pigskin leather and mesh, with laces and webbing that are 100% recycled. The bellows tongue prevents debris from entering. There is a protective toe cap. The lining is made of 100% recycled mesh. The insole is removable and contoured for advanced support, with reinforced cushioning in the heel for medium support. The arch shank is made of molded nylon. The midsole is made of lightweight EVA foam for stability and comfort. The sole is made of Vibram TC5+ rubber. Merrell aims to combine performance, styling, and comfort to empower everyone to explore the outdoors with confidence. The heel has a Merrell Air Cushion that absorbs shock and provides stability.