The Circuit and slightly larger Circuit II fibreglass Sim racing seats are built using Sparco's QRT (Quick Resin Technology) process which has helped to reduce the weight by 3.85kg over previous Circuit models. The Circuit seats incorporates Sparco's head restraint system adding an extra Motorsport visual to your sim racing cockpit.QRT manufacturing process for a much lighter seat with no compromise on rigiditySoft and comfortable for those long endurances racesNon slip material in strategic areas reduce body movement for better comfortAvailable in standard size (Circuit) and large size (Circuit II) to accommodate a wider range of drivers This latest version of the Circuit and Circuit II offer a 30% weight saving over the previous model whilst still remaining rigid and strong. This is due to the revolutionary QRT manufacturing process which allows a seat to be at carbon fibre weight but at fibreglass money. Non slip fabric is used on the base cushion and on the shoulders to increase bo