ARMREST OF VEHICLE SEAT

An armrest of a seat for a vehicle includes a first armrest that is movable between a storage position where the first armrest constitutes a part of a seating surface of a seat back and a use position where the first armrest abuts against and is supported on a seating surface of a seat cushion, a rear end portion of the first armrest in the use position being connected to a lower portion of the seat back to be rotatable forward and backward about a first rotation axis extending in a lateral direction of the seat, and a second armrest that is connected to the first armrest to be interlocked with the first armrest, is close to a rear side of the first armrest in the storage position, and is separated upward from the first armrest in the use position.