HRC Fiberglass Air. Racing seat with fiberglass . Shell and high protection shoulder and head containment. Designed to allow installation and comfortable driving position also in GT cars with reduced internal room. The velvet side is though for the application of containment cushions, which are available in 2 . Sizes (M or S, ref. HB/701). The base cushion is also available in thicker version (50mm, ref. HB/702). Breathable Air net and velour upholstering. Predrilled . Shell to allow cooling kit installation (HC/913).