resultant fabric had a basis weight of 91 1 grams per square meter a bulk of 0 031 inches and a machine direction strip tensile strength of 62 3 grams per centimeter as measured on an instron testing device air permeability was 281 1 cfm as measured by astm d737 the tpp thermal protection property for this material as measured by the test protocol specified in the nfpa 1971 1997 ed section 6 10 was 11 8 for this material a value of air permeability to mass volume of 79 6 cfm gram cc was obtained a fabric as made in the manner described in example 1 whereby in the alternative the three dimensional image transfer device of drum 18 was configured as a so called 33 u00d7 28 a rectilinear pyramidal forming pattern having 33 lines per inch by 28 lines per inch configured in accordance with fig1 of u s pat no 5 098 764 except mid pyramid drain holes are omitted pyramid height is approximately 1 5 mm with the long axis of each pyramid being oriented in the machine direction a resultant fabric had a basis weight of 89 1 grams per square meter a bulk of 0 030 inches a machine direction strip tensile strength of 57 9 grams per centimeter an air permeability of 283 9 cfm and.