As first seen on blog "TOKS" here: Those knit dresses
She is wearing tights similar here: Black Opaque Tights
Richly saturated, 50 denier matte opaque tights with flat seams and a waistband designed for incomparable comfort.
Junya Watanabe Pink Block-colour Tights
Express Swiss Dot Full Tights
Francescas Dalis Silver Opaque Tights