Introducing the SPANX Undie-Tectable Thong in Dusk Blue, the perfect solution for a completely smooth look under clothes. Say goodbye to visible panty lines with the bonded waistband that smooths your tummy and elastic-free edges for no VPL. Made from 77% Nylon and 23% Elastane with a 100% Cotton gusset, these undies are truly undie-tectable®. Machine washable and imported, get your butt in undie-tectable® with SPANX.