Abstract: The present invention relates generally to a child car seat device. More particularly, the invention encompasses a protective overlay or a sheath or a shield for a child car seat or a Phani Back. The present invention is also directed to a novel a protective overlay or a sheath or a shield for a child car seat that is reversible. The inventive protective overlay for a child car seat has both water repellant and water absorbent qualities and is machine washable. The inventive protective overlay for a child car seat provides a barrier between a child and a child seat cover. The inventive protective overlay for a child car seat can also be used as a padding between a child and a non-padded child seat cover.