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