An implantable composite medical device (10) having a longitudinal length a woven textile portion (26a, b) having yarns interlaced in a woven pattern, a knitted textile portion (24) having yarns interlooped in a knitted pattern. The woven and knitted portions are securably attached to one and the other to provide a composite woven and knitted textile surface along the longitudinal length of the device. Further, a crimped woven portion with a resiliently longitudinal stretchability from about 10 to about 100 linear percent over its quiescent longitudinal dimension or an uncrimped woven portion with a resiliently longitudinal stretchability of less than about 10 linear percent over its quiescent longitudinal dimension are useful. A knitted portion with a resiliently longitudinal stretchability from about 5 to about 200 linear percent over its quiescent longitudinal dimension is also useful.