ISY is an American fashion house founded by Yaroslava Nazarova.

ISY-I Said Yes-reflects a philosophy of conscious choice and modern femininity. The brand designs timeless garments defined by modern structure, softness, and understated elegance. Created with longevity in mind, each piece is conceived to move beyond seasonal fashion, evolving into objects of everyday and home use. ISY represents a contemporary approach to dressing, where refinement, adaptability, and responsible design coexist naturally.