BWonderGel Extreme Seat Cushion ReviewbP PP WonderGel Extreme Seat Cushion PUltra-soft, ultra-strong, solid rubber-like Gelastic material.PEngineered to the human comfort threshold, adjusting to any individual's body shape or weight.PGel fill breathes, so it stays cool while in use.PDurable elastic gel consistency immediately returns to its original shape, with no permanent depressions.