The XT-4 Mule reinterprets the XT-4 OG sneaker as an open-heeled mule, maintaining the technical trail legacy of the original design. Agile Chassis™ skeleton dual-density EVA cushioning Quicklace™ lacing system textile inlay sole textile lining rubber outsole synthetic and textile upper molded Ortho Lite® sockliner anti-debris mesh chevron lugs Mud conta GRIP® protective toecap lace pocket Sensi FIT™