Jiyoung and Boyoung are sister designers of South Korean brand OPEN YY, formerly known as TheOpen Product. The sisters created brand in 2020 with a vision of challenging the status quo and social standards of conservative dressing in Korea fashion.  

OPEN YY takes inspiration from the early 1990s and 2000s, with easy to wear and comfortable silhouettes. The brand embraces diversity and expression creating pieces with unique details such as asymmetry, exposed hems and cut outs.