Vehicle seat

A vehicle seat, comprising:

• a seat back including a seat back body and an upholstery that covers front, back, and upper surfaces and both side surfaces of the seat back body, wherein
• the seat back body includes a frame having a frame shape and serving as a framework, a front-side cover portion placed so as to cover a front side of an inner space of the frame and supporting a back of a seated occupant, and a back-side cover portion placed so as to cover a rear side of the inner space,
• the front-side cover portion and the back-side cover portion are covered by the upholstery,
• the back-side cover portion includes a flexible back-side sheet body stretched across the frame,
• the flexible back-side sheet body comprises cloth, a net, a resin sheet, or a combination thereof,
• wherein the front-side cover portion includes a flexible front-side sheet body and a spring member extended between a peripheral edge of the front-side sheet body and the frame to pull and tense the front-side sheet body, and
• wherein a degree to which the front-side sheet body and the back-side sheet body are tightened is set such that the front-side sheet body and the back-side sheet body do not contact each other.