Taiwan's functional textile products, as buoyed by advantageous conditions of technological sophistication, process control and business management, to garner the confidence and adaptation of many world renowned apparel brands; however, these excellent textile products rarely have a private woven product brand label, that can be presented to the consumers alongside an apparel brand, but in stead can only service the brand merchants; at a time when the local functional textile products are progressing and development, there is a need to explore how best to cooperate with the apparel brand labels by effectively utilizing it industry advantages, combining the co-branding strategy, for developing higher value-added functional textile products and private-label brands.Our study is to explore the "co-branding" strategy" between Goretex and clothing brands Jack Wolfskin and HILLTOP. And the results found that a co-branded product is more successful under the following condition: 1. Brand awareness of the constituent brands is high. 2. The brand equity of the constituent brands is high. 3. The evaluation of the pull advertising campaigns with regard to the co-branded product is positive. 4. The constituent brands are highly complementary regarding an attribute of the co-branded product. 5. The brand fit of the constituent brands is high. 6. The product fit of the product categories of constituent brands is high.