A laminate useful as an allergen barrier structure, comprising: in order, a) a woven fabric layer having a thread count of 180 to 400: b) a nonwoven allergen barrier layer having a basis weight of from 6 to 10 grams per square meter and consisting of fibers having average diameter of from 100 to 450 nanometers; and c) a tricot knit fabric layer; wherein the woven fabric layer is attached to the allergen barrier layer by a first adhesive being distributed in discrete areas on a first side of the allergen barrier layer, the discrete areas of adhesive penetrating into at least 70 % of the thickness of the allergen barrier layer and the first adhesive also penetrating into one surface of the woven fabric layer but not extending through said woven fabric layer from one surface to the other; and wherein the tricot knit fabric layer is attached to the allergen barrier layer by a second adhesive being distributed in discrete areas on a second side of the allergen barrier layer, the discrete areas of adhesive penetrating into at least 70 % of the thickness of the allergen barrier layer, the second adhesive also penetrating into one surface of the tricot knit fabric layer but not extending through said knit fabric layer from one surface to the other; and wherein the laminate has a total basis weight of from 50 to 300 grams per square meter and a filtration efficiency as measured by ASTM F2638-07 after 35 washings of 95 percent or greater for a 1 micrometer particle challenge of up to 1.6 liters per minute airflow. in order, a) a woven fabric layer having a thread count of 180 to 400: b) a nonwoven allergen barrier layer having a basis weight of from 6 to 10 grams per square meter and consisting of fibers having average diameter of from 100 to 450 nanometers; and c) a tricot knit fabric layer; a) a woven fabric layer having a thread count of 180 to 400: b) a nonwoven allergen barrier layer having a basis weight of from 6 to 10 grams per square meter and consisting of fibers having average diameter of from 100 to 450 nanometers; and c) a tricot knit fabric layer; wherein the woven fabric layer is attached to the allergen barrier layer by a first adhesive being distributed in discrete areas on a first side of the allergen barrier layer, the discrete areas of adhesive penetrating into at least 70 % of the thickness of the allergen barrier layer and the first adhesive also penetrating into one surface of the woven fabric layer but not extending through said woven fabric layer from one surface to the other; and wherein the tricot knit fabric layer is attached to the allergen barrier layer by a second adhesive being distributed in discrete areas on a second side of the allergen barrier layer, the discrete areas of adhesive penetrating into at least 70 % of the thickness of the allergen barrier layer, the second adhesive also penetrating into one surface of the tricot knit fabric layer but not extending through said knit fabric layer from one surface to the other; and wherein the laminate has a total basis weight of from 50 to 300 grams per square meter and a filtration efficiency as measured by ASTM F2638-07 after 35 washings of 95 percent or greater for a 1 micrometer particle challenge of up to 1.6 liters per minute airflow. <EOS>