From TC Fine Shapewear, this panty features: Brief pantyLightweight Wonderful Edge® on the back of the leg openingsInvisible under your clothesPanties are stretchyno-bind silicone waistSleek fabric won't snag clothing Tagless for all-day comfort and no rideSupima cotton/modal/spandex; gusset: cottonMachine wash/tumble dryImported.