in plastomers, e.g., single site catalyzed polyolefins such as metallocene catalyzed polyethylene such as, e.g., commercially available under the trade names AFFINITY or ENGAGE from Dow Chemical of Midland, Mich., or other polyolefin plastomers known in the art including polypropylene based plastomers or others; and styrenic block copolymers, such as ones commercially available under the trade nam