Sealtex waterproof membrane lining construction keeps moisture out while maintaining breathability; Extended heel counters for all day support; Padded collar and tongue for extra comfort; Unique self-cleaning rubber lug designed for durable wear and traction; Full grain or nubuck waterproof leather uppers; Removable EVA orthotic; Lightweight compressed EVA midsole for superior shock absorption; Metal hook and speed-lacing system for easy closure.