OSA Women's New Elegant Elbow Sleeve Floral Lace Shirts Tops 95.7% cotton, 4.3% spandex Delicated floret lace pattern, a great button down spring and summer blouses Very convenient to match up with other clothes Hand and machine washing Our size is Asian size,please select your right size follow the size chart.About How to choose proper size? Hint 1: Bust Size is the most important reference for this shirt. Hint 2: Choose larger size if your measurement sizes are same or a bit bigger than the LEFT size chart data