Seat carbon fiber shell molded in autoclave. Perforated seat shell. Rear holes for compatibility with ventilation system AIR FLOW. Large shoulder harness slots to accommodate various heights. High side bolsters for lateral leg support. Shaped security headrest. Removable back cushion, base, split leg rests to allow maximum individual seating comfort. Rubber dots for improved grip inserts. Upholstered entirely in high breathability AIRTEX material. Upholstered customized on demand. HANS compatible. XL VERSION LARGER AND HIGHER.