This is a standing collar women's top with button cuffs. and the body have many ruffles ,this style fabric is Rayon challis,It is a lightweight fabric that is commonly used for women's shirts. It is known for its soft and smooth texture, as well as its drape and flow. Rayon challis shirts are often comfortable and breathable, making them suitable for warm weather. Rayon challis shirts can be dressed up or down, making them versatile for different occasions. However, it is important to note that rayon challis can be prone to wrinkling and may require extra care when washing and ironing.