Crafted in a rich oiled nubuck leather made by ECCO Leather produced using the ECCO DriTan method of reducing water and chemicals commonly used during the leather tanning process. GORE-TEX waterproofing. Inside zip for ease of entry. Our signature ECCO fluidform seamless construction provides soft, flexible, fluid movement. Lightweight PU midsole and outdoor-inspired rubber soles provide traction in different types of weather conditions and terrain.