The XT-Whisper features a GORE-TEX membrane for waterproof protection and breathability. This design enhances durability while maintaining a lightweight feel for all-weather comfort. GORE-TEX membrane quick LACE™ system textile lining rubber outsole agile CHASSIS Ortho Lite® diecut sockliner ripstop fabric chevron lugs Mud conta GRIP® lace pocket protective toecap sensi FIT™