Mudflap
（重定向自Mud guard）
![Truck with bright blue mud flaps on the rear wheel wells and bumper](/Images/godic/202501/28/Mazda_Bongo_Brawny_Truck_Double_Cab_rear5939.jpg")
![Dually pickup with louvered (vented) mudflaps and tailgate](/Images/godic/202501/28/Aero_flaps_Dually5939.JPG")
A mudflap or mud guard is used in combination with the vehicle fender to protect the vehicle, passengers, other vehicles, and pedestrians from mud and other flying debris thrown into the air by the rotating tire. A mudflap is typically made from a flexible material such as rubber that is not easily damaged by contact with flying debris, the tire, or the road surface.