As first seen on blog "MyPantyhoseGirl" here: Total fatal look
She is wearing tights similar here: Wolford: Fatal 15 Seamless Tights
Wolford: Fatal 15 Seamless Collection - Enjoy luxury on the skin with no visible lines and a transparent look. This revolutionary collection is perfect for underneath fitted skirts and dresses. Wolford is the leader in hosiery, using the most cutting edge technology to create highly durable stockings and tights that are soft to the touch.