OAO Studio (trading as OAO Store) is a Ho Chi Minh City label that, since about 2017, has built a following for made-to-order Vietnamese menswear produced in its own atelier. It pairs a modern reworking of the traditional men's ao dai with contemporary, street-leaning separates — most notably its signature open-weave mesh shirts and tanks. Every garment is cut in-house and shot by the brand's own team, giving it a consistent, self-styled visual identity. It targets young, style-forward Vietnamese customers who want heritage-meets-streetwear pieces.