A portable seat that is compact for storage and could be easily carried by a user. The portable seat can be switched to a functional state that allows the user to sit at ground level while supporting a back of the user. The portable seat includes a base that has a proximal portion and a distal portion. A longitudinal cut divides the distal portion into a left section and a right section, wherein each of the left section and the right section can flex upwards or downwards, and the left section and the right sections can be pulled towards each other in an overlapping manner. Suitable fasteners can retain the distal portion in the overlapping manner. The distal portion in the overlapping manner is contoured upwards to support the back of the user.

A seat cushion includes a mesh member embedded into a foam member. The mesh member comprises a set of filaments of polymeric material which are looped and bonded to each other. The mesh increases rigidity, cut resistance, tear resistance, and abrasion resistance of the foam member, eliminating the need for scrim and border wire in some applications.

A seat cushion includes a mesh member embedded into a foam member. The mesh member comprises a set of filaments of polymeric material which are looped and bonded to each other. The mesh increases rigidity, cut resistance, tear resistance, and abrasion resistance of the foam member, eliminating the need for scrim and border wire in some applications.

A seating configuration is described. The seating configuration includes a first support surface configured to support the Ischial Tuberosities of a user. The first support surface includes a feature to urge a user into an optimal position on the seat. The seating configuration includes a second support surface positioned adjacent a pelvic-sacral-lumbar region of the user. The seating configuration includes a third support surface positioned adjacent a thoracic-cervical region of the user. The first, second, and third support surfaces, respectively, together can be configured to create a natural alignment of a spinal column of the user.

A seating configuration is described. The seating configuration includes a first support surface configured to support the Ischial Tuberosities of a user. The first support surface includes a feature to urge a user into an optimal position on the seat. The seating configuration includes a second support surface positioned adjacent a pelvic-sacral-lumbar region of the user. The seating configuration includes a third support surface positioned adjacent a thoracic-cervical region of the user. The first, second, and third support surfaces, respectively, together can be configured to create a natural alignment of a spinal column of the user.

A vehicle seat includes a cushion body that elastically supports a seater, and a cushion frame that supports the cushion body from the back side of the seat. The cushion body is provided with three divided elements, specifically a main member that forms a central portion in a seat width direction, and side members that form two side portions in the seat width direction. The main member has a main pad including a pad body and a pad reinforcing portion. The pad body includes a polyurethane form molding. The pad reinforcing portions are made of a harder foamed bead molding and are disposed along both edges of the back side of the pad body. The pad reinforcing portions include foamed bead molding that is harder than the pad body.