Rally Armor Subaru WRX mud flaps are constructed from durable polyurethane, they perform consistently in all weather conditions off-road or on the highway. The flexible UV-resistant urethane mud flaps are durably abrasion-resistant and long-lasting. Providing drivers with four-corner protection, RA mud flaps are crafted for variable temperatures. They help to protect against salt, spray, damaging gravel, tar and grime that wear your car’s finish away. While vinyl and rubber manifest steady, visible material curling and wear over time, strong urethane construction maintains its form through all weather conditions.