The Easy Stretch Bungee Cord by The Perfect Bungee is made from FlexaPURE, our proprietary polyurethane material. It contains NO rubber or latex and is UV, Chemical, Fuel and Oil Resistant as well as waterproof (salt & fresh). The Perfect Bungees products are designed to withstand All Weather and All Temperatures and can stretch up to 2x original length. Nylon ABS Hooks are non-marring and wont scratch or gouge surfaces. The Original, Since 2010.