An optical communication cable bundle is provided. The cable bundle includes a bundle jacket having an inner surface defining a bundle passage and an outer surface defining an exterior surface of the cable bundle, and a plurality of optical fiber subunits located within the bundle passage and surrounded by the bundle jacket, each optical fiber subunit having a subunit jacket defining a subunit passage and a plurality of optical fibers located with the subunit passage. A thickness of the bundle jacket is less than a thickness of each of the subunit jackets and the bundle jacket is extruded tight around the subunit jackets to couple the subunits and the bundle jacket.