Rally Armor Mud Flaps For Subaru BRZ are constructed from polyurethane and designed to perform consistently under diverse road conditions. Flexible UV-resistant urethane mud flaps are durably abrasion-resistant and long wearing. Providing drivers with four-corner protection, Rally Armor mud flaps are crafted for variable temperatures. They help to protect against salt, spray, and paint damaging gravel, tar, and grime that wear the vehicle finish away. Whereas vinyl and rubber manifest steady, visible material curling and wear over time, strong urethane construction maintains its form through all weather conditions.