The invention relates to a flexible, penetration resistant article comprising a plurality of fibrous layers including continuous filament yarns, and having an areal density of less than about 4.4 kilograms per square meter. At least one of the plurality of fibrous layers has a fiber with a tenacity of at least about 30 grams per decitex and a continuous filament yarn having a linear density of less than about 1100 decitex.