Patent ID: 7695069

Claim:
A seat cushion, comprising: a flexible and semi-rigid body having a seating surface and a substantially smooth support surface spaced apart from the seating surface forming a body thickness, the seating surface having a first area and the support surface having a second area, wherein the body has a body composition with a first percentage by volume of Ethylene Vinyl Acetate, and wherein the EVA is substantially evenly mixed throughout the body composition with additional materials in respective percentages; a plurality of spacing members spaced apart and substantially evenly distributed across the second area, with each of the plurality of spacing members extending outwardly in a first direction from the support surface, wherein the plurality of spacing members each has a spacing member composition with a second percentage by volume of EVA and with a third percentage by volume of rubber, and wherein the EVA and the rubber are substantially evenly mixed throughout the composition of the plurality of spacing members with additional materials in respective percentages; and, a plurality of ventilation holes extending through the body from the seating surface to the support surface, the plurality of ventilation holes being distributed among the plurality of spacing members and spaced to facilitate ventilation around and between the plurality of spacing members and the plurality of ventilation holes; wherein the first percentage of EVA is not equal to the second percentage of EVA and the elasticity of the body is not equal to the elasticity of the spacing members.