These covers are constructed of durable neoprene creating the best looking custom seat cover available. Rugged Ridge does not use that cheap stretch nylon on their seat covers! Neoprene (wet suit material) is a great fabric to protect your seats from dirt, water and whatever mother nature can throw at you. Installation is easy with special designed elastic cords, nylon straps and hooks that attach to your seat and to the seat cover mounting points. Sold as a pair.