A lugged rubber outsole and gripping grooves provide traction, step after step, mile after mile. The full-foot bootie construction keeps mud and moisture out, and keeps comfort in. Upper - Mesh and Ripstop Fabric. Lining - Seamless Neoprene with Bootie Design. Insole - MemoryTech Memory Foam Cushion Removable Footbed. Outsole - Slip Resistant Rubber Outsole with Trail Lugs and Flex Grooves. Special Features - No Exposed Metal on Upper