Opini was founded in Saigon in 2024, taking its name from "opinion", reflecting the idea that style is shaped by how each person wears a piece. The brand designs with interaction in mind: drawstrings, snap buttons, and adjustable panels let garments shift and adapt, so each wearer can style them differently.

Opini is recognised for relaxed silhouettes and panel-based construction, creating clean, continuous lines across the body. Signature pieces like the High Collar Jacket and Oto Pants reflect this approach, alongside softer jersey styles such as the Gathered Top and Cold Top.