Kit including plastic frame + flip-up bolster + padding ready to be upholstered. This seat features the SAS-Shock Absorbing System that absorbs the shocks without transferring impact to the boater.SAS seat with shock absorbers that absorb wave impacts.__logo__COLORE_attenzione__ Indicative picture. The seat is supplied without upholstery. Fabric or leather fabric at customer's choice not included in the price.