W/J with JILL STUART was a Japanese lifestyle wear line that debuted in March 2024 under JILL STUART and JILL by JILL STUART, both operated by TSI. Reframing fashion from “dressing stylishly” to “being beautiful,” it offered loungewear and athleisure items made with functional materials, guided by a concept of supporting a well-being mindset that also attends to inner life. Following a business reorganization in February 2025, JILL STUART’s apparel business was consolidated into JILL by JILL STUART, and the line ended.
Concept
Fashion from “dressing stylishly” to “being beautiful.” The line offers lifestyle wear that supports a well-being mindset attentive not only to outward appearance but also to inner life.