MP Neoprene top covers are made from real CR (chloroprene rubber). This is the same grade of material  used to make the wet suits that deep sea divers and surfers depend on to regulate their body temperature and protect them from hazards and hard wipe outs. The same protection is available for your feet. The abraded backing ensures reliable adhesion to all of our available materials. Prefabricated MP Neo is also available with options of nylon fabric covering containing SILPURE® antimicrobial crystals or Bamboo. Bare MP Neo and MP Sponge can be paired with any of our top cover fabrics, leathers, or suedes.