PURPOSE: To decrease the size of a fender and a mounting area without deterioration in buffering function, by a method wherein a side wall between the impact receiving end and the mounting end of the fender is curved in a wave-form in cross section extending parallel to the impact receiving end.

CONSTITUTION: An impact receiving end 2, being an upper end, a mounting end 4, being a lower end, and an impact support part 3, formed in widening in a tapered manner toward the lower end in a range of from the upper end to the lower end, are formed by a rubber resilient material. Annular metallic plates 7 and 8 are buried in the impact receiving end 2 and the mounting end 4 to produce a fender body 1. In which case, the impact support part 3 is curved in a wave-form in cross section extending parallel to the impact receiving end. This enables reduction of the size of the fender 1 in a condition to maintain buffering performance at a high value, resulting in the possibility to reduce the mounting area thereof.