The most common and accurate terms are:
​Long Ruffle Shrug
​Ruffle Sleeve Kimono
​Key Features
​Style: It has an open-front design with no closure.
​Length: It is a longer piece, likely reaching the mid-thigh area.
​Sleeves: It features dramatic tiered or layered ruffle sleeves.
​Fabric: The material is lightweight and drapey (likely Chiffon, Georgette, or a similar synthetic blend).