The XT-6 Gore-Tex is engineered for stability, cushioning, and comfort. This sneaker incorporates waterproof protection and updated materials. quick LACE™ system for one-pull tightening rubber outsole Agile CHASSIS™ with Energy Cell midsole for stability and dampening molded Ortho Lite® sockliner for cushioning, breathability and durability Mud Conta GRIP® with deep, sharp lugs lace pocket protective toecap Sensi FIT™ for a secure, snug fit