Caterpillar Emerge Shoe The Emerge is a low-profile active style that combines urban explorer intelligence with a street smart attitude for a distinct and different Cat look. Fastening:Lace Up Material Composition:Leather/Textile/Other Materials Emerge is one of our most popular shoes. Flexible sole, padded collar and good grip. Full Grain Leather Upper. Nylon Mesh Lining. Nylon Mesh Sock Liner. T868 Outsole. Cement Construction.