appended claims are intended to cover all modifications equivalents and alternatives falling within the spirit and scope of the invention as defined by the claims throughout this specification like reference numbers signify the same elements throughout the description of the figures when elements are referred to as being u201c connected u201d or u201c coupled u201d the elements can be directly connected or coupled together or one or more intervening elements may also be present in contrast when elements are referred to as being u201c directly connected u201d or u201c directly coupled u201d there are no intervening elements present fig1 is a schematic diagram of an embodiment 100 showing a cross section of porous material that may be formed using a solution of a polymer dissolved in a solvent and a miscible pore forming agent that has a higher surface energy the porous material 102 and 104 is shown on both sides of a web 106 fig1 is not to scale and is a schematic diagram in some embodiments the porous material 102 and 104 may impregnate the non woven web 106 such embodiments may have partial impregnation or complete impregnation of porous material 102 and 104 into the thickness of the non woven web 106 some embodiments may have mechanical or chemical adhesion of the porous material 102 and 104 to the surface of the non woven web 106 other embodiments may vary in cross section based on the specific manufacturing process used.