SPANX Undie-Tectable Mid-Thigh 904 Seamless thigh shaper looks "Undie-tectable" under clothing. Medium control. Wide waistband, invisible compression zone flattens tummy. Seamless yarns slim hips, thighs and rear. Mid-thigh panty designed to extend to center thigh. Light, stretch fabric for a comfort fit. Discreetly slims under skirts and dresses. Matching sewn-in crotch substitutes panty. Tagless for comfort.