The AK-8152 is a stylish theatre seat. The outside seat & back have a injection moulded plastic shell to protect the outside back from damage. The seat cushion and back cushion are made of a commercial moulded PU foam upholstered with a commecial polypropylene fabric. It has a fixed back and tip-up seat for ease of movement along the rows. Plastic, upholstered top arm rest with cupholder that can fold up and down. The steel legs are made of cold-rolled steel tube that has been powder coated. Note: Each row of chairs has 2 fabric upholstered side panels for the 2 aisle chairs. The middle chairs/legs have no side panel.