A portable supportive seating system allows for a person to move a chair with them and then assemble it in remote locations and there receive support for their back and general posture support from it. A back support has an attachment that allows a rest or seat to be placed through it and holds the person that sits on it. A guard is attached to the bottom edge of the back support to protect it.

A folding chair that includes a seat portion, a first frame, the first frame including a back and two first parallel legs, the two first legs being monolithic with the back, the first frame being hinged to the seat portion at the two first legs on two opposite sides of the perimetric edge of the seat portion, and a second frame, the second frame including two second parallel and mutually integral legs, the second frame being pivoted to the first frame at two crossing regions of one of the second legs with a respective one of the first legs.

A folding chair, comprising: seat portion, a first frame, the first frame comprising a back and two first parallel legs, the two first legs being monolithic with the back, the first frame being hinged to the seat portion at the two first legs on two opposite sides of the perimetric edge of the seat portion, second frame, the second frame comprising two second parallel and mutually integral legs, the second frame being pivoted to the first frame at two crossing regions of one of the second legs with a respective one of the first legs.

The chair is entirely made of plastic-based material.