In the photo, Wonyoung is wearing a dark navy or charcoal grey pinstripe corset top. This top is a strapless tube-top style, boasting a slim, structured fit that emphasizes the waistline. The back features a corset lace-up detail connected through metal eyelets with shoelace-like material, adding a unique charm. It appears to be made from a woven fabric, possibly a cotton or polyester blend, clearly showcasing the pinstripe pattern. This design seems to be inspired by the structured tailoring of Dior or the trendy designs from SPA brands like ZARA.

The bottom appears to be a matching set item, featuring the same dark navy or charcoal grey pinstripe pattern as the top. Although not clearly visible, it is presumed to be part of a flared or A-line skirt that gracefully falls from the corset line of the top. The use of a consistent woven fabric enhances the overall completeness of the look. Similar styles can be found in the classic tailoring of Burberry or the minimalistic yet sophisticated designs from COS.

Wonyoung is wearing earphones or in-ear monitors for her stage performance. They feature transparent or light-colored wires and white earbud parts. Additionally, a small black pouch, likely a wireless microphone receiver or related device, is attached to her back. Such equipment is typically produced by professional audio brands like Sennheiser or Shure, serving as essential functional elements for stage performance rather than fashion accessories.

The top is a corset-style piece in a dark navy or charcoal grey with thin pinstripes. It features a body-hugging fit that accentuates the waistline, with lace-up detailing at the back adding visual interest. The material is presumed to be a wool blend or polyester blend, offering a classic tailored feel. This design could be inspired by collections from brands like Burberry or Versace, and similar styles might be found at SPA brands such as Zara or H&M.

The bottom appears to be a pinstriped skirt, likely part of a matching set with the top. Although only partially visible in the image, it is expected to have a flowing A-line or asymmetrical hemline that complements the top's structured feel. This outfit could be a tailored pinstriped dress or a matching top and skirt set. Such styles may draw inspiration from classic yet contemporary garments presented by luxury brands like Gucci or Prada.

No prominent accessories appear to be worn in the photo. This allows the focus to remain on the unique design and intricate details, characteristic of top-tier fashion brands, emphasizing the overall clean and sophisticated appeal of the style. Only a simple in-ear monitor is worn, fulfilling the minimal requirements for a stage performance.