Sharing all the same features as the Grid Q but with a waterproof vinyl cover the Grid Q Sky has been designed with multiple removable cushions to offer the driver more options to customise the fit. Manufactured using Sparco's QRT production method has resulted in a lightweight (only 7kg) seat perfect for off road use or other applications where seats are exposed to the elementsQRT manufacturing process for a much lighter seat with no compromise on safety or rigidityWashable and waterproof vinyl coverRemovable 'modular' cushions for a more tailored fitHigh lateral leg support and low profile leg cushion keep drivers legs within the seat for improved safetyThe modular cushions on the Grid Q Sky seat are held in place with Velcro so they can easily be removed or re-positioned as required. All of the cushions can be removed to facilitate a resin seat kit to be used. The lightweight fibreglass shell is rigid and features 5 harness slots and side mount threaded receptacles.FIA 8855-1999 app