Work Vehicle and Seat Arrangement

A work vehicle includes a body with a seat arrangement for an occupant to seat on. The seat arrangement includes a seat base and a seat support supporting the seat base. The seat base is swingable about an axis which is located in a front part or a rear part of the seat base and extends in a width direction of the seat base. The seat base is switchable between a use orientation in which a seating face of the seat base faces upward and an inverted orientation in which the seating face of the seat base faces downward, and in the inverted orientation, an upper portion of the seat support is exposed.