Hello, First of all, thank you for your interest. The fabric content of our "Saks Patterned Slit Detailed Long Dress MG2325" model is not silk. Our product is made from a high-quality polyester fabric that offers elegance and ease of use together. Our polyester fabric has a luster and texture similar to silk, while offering the advantage of being more durable and easy to care for in everyday use. If you have any questions, feel free to write to us again. We are happy to assist you. Best regards, Deniz Madmext Team