PROBLEM TO BE SOLVED: To simplify the mechanism for replacing a cover covering the surface of a seat body. SOLUTION: A seat 1 for a vehicle includes a net cover 2A covering the surface of a seat back 2 (the seat body), and a jacket cover 10 capable of covering the surface of this net cover 2A and being removed from the covering state. The jacket cover 10 is configured of a flexible planar member. The forefront portion of each of belt-like shoulder pieces 11A, 11A extending from the upper edge portion of the jacket cover 10 is connected to the back surface portion of the seat back 2. The jacket cover 10 can be switched between an in-service state where it covers the surface of the net cover 2A and an out-of-service state where it is removed from this in-service-state to be turned to the back side of the seat back 2, by the rotational movement around the connection point with the seat back 2 serving as the fulcrum. COPYRIGHT: (C)2011,JPO&INPIT