The following information is from Sparco's website,
The Evo II US competition seat has the quality and performance you’ve come to expect from Sparco and the Evo seat line. The Evo II US was designed and developed with extensive input from some of the most prestigious DTM and ITC championship drivers. The Evo II US retains the height and shape of the extremely popular EVO and adds in 1.5" of width. The Evo II US is made with a fiberglass composite shell and wrapped in a fire retardant fabric. The Evo II US is FIA approved.
Fiberglass composite shell
Designed and developed in collaboration with DTM and ITC drivers
Fire retardant fabric
Special non-slip fabric
The Evo has been upgraded with a new lower seat cushion for 2017.
The Evo Series is our most versatile competition seat and is available in four sizes to ensure proper fitment.