Sparco Seat Competition Series EVO QRT Sparco Evo QRT Fibreglass Sim Racing Seat > GSM SportSeats4u FITTING SPARCO BUCKET SEATS IN THE EVO YouTube Sparco Evo XL QRT FIA Motorsport Bucket Seat > GSM SportSeats4u Sparco QRT Performance FIA Bucket Seat > GSM SportSeats4u. The EVO S QRT competition seat is the smallest seat in the EVO range. The EVO S QRT is made with all new QRT Technology which results in an ultra light shell. The EVO S QRT is designed to fit a smaller driver with a maximum waist size of 32 inches. The EVO S QRT has excellent fitment into smaller cockpits. The EVO QRT series of seats feature the most back angle rake of all Sparco seats for a very comfortable driving position. The EVO S QRT is FIA approved. SIZING The EVO Series is our most versatile competition seat and is available in four sizes to ensure proper fitment. EVO S Small (up to 32 waist) EVO Medium (up to 34 waist) EVO L Large (up to 36 waist) EVO XL X Large (38 waist) WHAT IS QRT? Designed and developed at the Sparco OEM Composite Laboratory in Italy, QRT is a patented state of the art technical process, based on aerospace technologies. QRT creates an unparalleled mechanical strength to weight ratio. This innovative production method generates the lightest fiberglass composite seat shells currently on the market; in fact, it guarantees a reduction in total weight of up to 30% compared to traditional production methods. The QRT seats approach the weight of a comparable carbon fiber seat at a lower price point. TECHNOLOGY QRT Ultralight fiberglass composite shell Excellent fitment into small cockpits 4 Sizes: Small through XL Excellent ergonomics Fire retardant fabric Special non slip fabric FIA approved