As first seen on blog "Pani Olimpu" here: Navy and bungurdy
She is wearing tights similar here: Black Opaque Tights
Step up your legwear game with tights. Designed using a premium power leg and an updated built-in shaper with an invisibly smooth center front seam, these tights do the work for you...so you can work the room. Wear under skirts and dresses for full-coverage shaping. Opaque plus all day and all night shaping. Premium power leg: luxurious hand feel and great recovery. High-waisted built-in shaper eliminates muffin top, firms butt and thighs. Smooth center front seam equals no show under clothes. Soft, comfortable waistband won't dig. Strategically designed for perfect fit around toes. Cotton double gusset for convenience when nature calls. Slimming level: Shape.