Sneakers XT-4 Og, Black Ebony Silver Metallic X • Upper: Synthetic / Textile MCL • Insole: Textile • Lining: Textile MCL • Outsole: Mud Contagrip® rubber for maximum traction on unstable or rough surfaces • Stability: Agile Chassis™ Skeleton • Responsive dual-density EVA cushioning protects the foot and provides smooth landings • Quicklace ™ lacing system • Molded OrthoLite® insole for exceptional cushioning, breathability and durability.