Material:POLYESTER Sizing Tips: Please refer to our size chart provided in the picture (not Amazon's size chart) Style & Matching: Vintage style vests can be worn with shirts, blouses, skirts, pants and dresses for a casual and elegant look. This blazer is a great accessory to your outfit. Unique design: The sexy backless vest adopts a simple and elegant back design, with backless and lace-up design elements, showing a sexy and charming side. This unique design can attract others' attention and make you the center of attention. Material and Garment Care: This women's tank top is made of high-quality polyester, soft, elastic, washable, durable, good quality, smooth, not easy to wrinkle and fade. Hand wash or dry clean in cold water