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A coated article comprises a substantially continuous, moisture vapor permeable coating of hydrophobic polymer joined to one side of a sheet of microporous material comprises a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided, water-

A coated article comprises a substantially continuous, moisture vapor permeable coating of hydrophobic polymer joined to one side of a sheet of microporous material comprises a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided, water-insoluble siliceous filler, and interconnecting pores.

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A coated article which is substantially impermeable to liquid water and permeable to moisture vapor, said article comprising: (a) a sheet of microporous material having generally opposing sides, said microporous material comprising: (1) a matrix consisting essentially of essentially linear ultrahigh

A coated article which is substantially impermeable to liquid water and permeable to moisture vapor, said article comprising: (a) a sheet of microporous material having generally opposing sides, said microporous material comprising: (1) a matrix consisting essentially of essentially linear ultrahigh molecular weight polyolefin which is essentially linear ultrahigh molecular weight polyethylene having an intrinsic viscosity of at least about 18 deciliters/gram, essentially linear ultrahigh molecular weight polypropylene having an intrinsic viscosity of at least about 6 deciliters/gram, or a mixture thereof; said matrix comprising regions of stretch-induced molecularly oriented ultrahigh molecular weight polyolefin distributed throughout said matrix, (2) finely divided particulate substantially water-insoluble filler, of which at least about 50 percent by weight is siliceous, distributed throughout said matrix, said filler constituting from about 50 percent to about 90 percent by weight of said microporous material, and (3) a network of interconnecting pores communicating throughout said microporous material, said pores on a coating-free and impregnant-free basis constituting more than 70 percent by volume of said microporous material; and (b) a substantially continuous, moisture vapor permeable coating of hydrophobic polymer joined to one side of said microporous material, said coating being an elastomeric solid at ambient temperatures.