Seat support arrangement for folding chair

A seat support arrangement for a folding chair which comprises a foldable chair frame supporting a fabric seat having a back support portion and a seat support portion, wherein said seat support arrangement comprises a thigh supporting flay integrally and frontwardly extended from a front end of said seat support portion of said fabric seat, and a pair of seat supporting arms which are frontwardly extended from two front upper frame joints of said foldable chair frame and Parallelly connected to two side edges of said thigh supporting flap so as to evenly support said seat support portion in such a manner that said thigh supporting flap of said fabric seat is firmly supported to extend frontwardly so as to substantially increase a seat area of said seat support portion of said fabric seat, wherein said foldable chair frame comprises a pair of back frame legs, a pair of front frame legs pivotally connected in cross manner, and two pairs of side frame legs, wherein each pair of said side frame legs includes a first side frame leg and a second side frame leg pivotally connected in cross manner, wherein two upper ends of said twoside frame legs are pivotally connected to said two front upper frame joints respectively.