A seat, comprising: a seat back having a front side and an upper end; and a headrest assembly connected with seat back, the headrest assembly comprising: a semi-rigid flap connected with the upper end of the seat back at a first location, the semi-rigid flap extending downwardly along the front side of the seat back; and an adjustable connecting assembly comprising an attachment element attached with the flap and a receiving element attached with the front side of the seat back, the adjustable connecting assembly positioned to connect the flap with the seat back at a second location on the front side of the seat back and separated from the first location, the second location being movable such that a distance between the first and second locations can be increased or decreased, wherein decreasing the distance between the first and second locations causes the flap to extend away from the seat back, wherein the attachment element comprises a locking protrusion and the receiving element comprises a discontinuous plurality of slots configured to receive the locking protrusion at a plurality of second locations corresponding to the plurality of slots, the distance between the first and second locations being adjustable depending on the slot of the discontinuous plurality of slots into which the locking protrusion is received. a seat back having a front side and an upper end; and a headrest assembly connected with seat back, the headrest assembly comprising: a semi-rigid flap connected with the upper end of the seat back at a first location, the semi-rigid flap extending downwardly along the front side of the seat back; and an adjustable connecting assembly comprising an attachment element attached with the flap and a receiving element attached with the front side of the seat back, the adjustable connecting assembly positioned to connect the flap with the seat back at a second location on the front side of the seat back and separated from the first location, the second location being movable such that a distance between the first and second locations can be increased or decreased, wherein decreasing the distance between the first and second locations causes the flap to extend away from the seat back, wherein the attachment element comprises a locking protrusion and the receiving element comprises a discontinuous plurality of slots configured to receive the locking protrusion at a plurality of second locations corresponding to the plurality of slots, the distance between the first and second locations being adjustable depending on the slot of the discontinuous plurality of slots into which the locking protrusion is received. a semi-rigid flap connected with the upper end of the seat back at a first location, the semi-rigid flap extending downwardly along the front side of the seat back; and an adjustable connecting assembly comprising an attachment element attached with the flap and a receiving element attached with the front side of the seat back, the adjustable connecting assembly positioned to connect the flap with the seat back at a second location on the front side of the seat back and separated from the first location, the second location being movable such that a distance between the first and second locations can be increased or decreased, wherein decreasing the distance between the first and second locations causes the flap to extend away from the seat back, wherein the attachment element comprises a locking protrusion and the receiving element comprises a discontinuous plurality of slots configured to receive the locking protrusion at a plurality of second locations corresponding to the plurality of slots, the distance between the first and second locations being adjustable depending on the slot of the discontinuous plurality of slots into which the locking protrusion is received.