Abstract: A blanket with waterproof frictional backing comprising an upper layer attached to a lower layer, and frictional strips attached to the lower layer. The upper layer is a non-abrasive textile such as canvas or terrycloth, and is intended to provide a comfortable seating surface for an occupant. The lower layer is a waterproof material such as plastic or nylon, and serves to protect an occupant from a wet surface upon which the blanket with waterproof frictional backing rests. The frictional strips are fabricated of a material such as rubber or other suitable material, and are intended to prevent the blanket with waterproof frictional backing from slipping on a wet surface, thus enhancing the comfort of an occupant as well as decreasing safety risk.