Vehicle seat assembly

A vehicle seat assembly comprising:

• a seat bottom frame including a front frame portion and a rear frame portion defining a seat cushion receiving area therebetween;
• a seat suspension structure having a front end attached to the front frame portion and a rear end attached to the rear frame portion such that the seat suspension structure extends through the seat cushion receiving area;
• a strap structure having a front portion attached to one of the front frame portion and the front end of the seat suspension structure, and a rear portion attached to one of the rear frame portion and the rear end of the seat suspension structure, the strap structure extending through the seat cushion receiving area;
• and
• a cushion material attached to the seat bottom frame and extending over the seat bottom frame, the seat suspension structure, the strap structure and the seat cushion receiving area, the cushion material defining a hip receiving surface, wherein
• the seat suspension structure being configured such that in response to a vehicle passenger seated on the hip receiving surface of the cushion material causing downward movement of the hip receiving surface into the seat cushion receiving area also causes the seat suspension structure to undergo elastic downward movement within a first movement range providing comfort to the vehicle passenger, with the strap structure being dimensioned to remain slack during movement within the first movement range, and
• further downward movement of the hip receiving surface into the seat cushion receiving area causes the seat suspension structure to undergo further elastic downward movement within a second movement range causing the strap structure to become taught thereby restricting downward movement of the seat suspension structure within the second movement range.