Upholstery for a passenger seat

The invention pertains to an upholstery ( 5 ) for a passenger seat ( 1 ), particularly an aircraft seat, that comprises at least one layer ( 7, 26 ) in the form of a textile surface ( 8 ) consisting of threads ( 9 to 11 ) and/or fibers forming these threads ( 9 to 11 ). The textile surface ( 8 ) is at least regionally formed by a knitted spacer fabric composed of at least two layers ( 12, 13 ) that are spaced apart from one another and pile threads extending therebetween, wherein the textile surface ( 8 ) can be at least regionally connected to a supporting frame ( 6 ). At least one functional element ( 19 ) is at least regionally assigned to the textile surface ( 8 ).