"Standard leather upholstery" refers to the basic level of leather covering used for the seats, usually provided as a default option when purchasing a vehicle. Full definition
The interior is handsomely appointed with standard leather upholstery wrapped over large comfortable seats. (articles.orlandosentinel.com)
Standard leather upholstery provides supreme comfort as occupants enjoy a composed, comfortable ride thanks to the AIRMATIC suspension. (loebermotors.com)
The inside goodies refer to $ 1,500 worth of honeycomb quilting with red or gray stitching, on top of standard leather upholstery / Alcantara with diamond quilting, or sport seats. (automotorblog.com)