The original foam liquid is filled into the mold with the steel seat frame and foams in one piece, so that the steel frame is directly wrapped. The foam has a high density, so that it does not sink or shift after long periods of sitting and has a long service life. It is slightly elastic, very supportive, contributes to body weight distribution and relieves pain in the lumbar spine. Sponge is the soft support of the gaming chair and the basis for the comfort and durability of the chair. Inbox Zero Upholstery Colour: Brown