Invacare Matrx Flo Tech Contour Visco CushionInvacare Matrx Flo tech Contour Visco cushion A temperature sensitive cushion moulded from Viscoelastic foam that easily shapes to the body to provide optimal support when seated. As the foam warms, the contoured surface area conforms to the shape of the person's body, improving posture, increasing comfort and maximising the surface area in contact with the person, to optimise pressure reduction.