US Patent 9609951 Foam seat cushions

Improved foam seat cushions that are ergonomically shaped, equipped with a notch to facilitate proper sitting and to potentially center on a seat, and a plurality of channels running through the cushion to provide cooling. In some examples, the foam seat cushion includes handles located on either side and can be folded in half for easy transport. In some further examples, the foam seat cushion includes a cushioning layer disposed at the foam layer.