cheap string going up the backs of the legs. Im planning on switching it with a nicer red ribbon. They are see through... I am 5ft 6in and weigh 130, and i ordered a medium. They aren't too tight but you can see my butt through them. Which is disapointing. I suppose if you are planning on using them strictly in the bedroom or planning on wearing a dress or skirt over them then they are an ok buy. But im honestly kind of regretting it