On May 24, 2022 via photos taken at the Incheon airport, IU was spotted wearing Gucci vest, Siyazu shirt, Gucci loafers.
You can shop
GG Jacquard Vest ($956) from gucci.com,
SI TP 5052 (KRW 78,000) from wconcept.com,
Women'S Loafer With Double G ($980) from gucci.com right now.