A woven fabric for a low profile implantable medical device includes a plurality of textile strands of a composite yarn aligned in a first direction interlaced with a plurality of textile strands of the composite yarn aligned in a second direction. The composite yarn includes a combination of a first material and a second material. The textile strands have a size between about 10 denier to about 20 denier. The first material has at least one characteristic different from the second material and the second material reacts favorably with blood when placed within an artery.