50% Polyester, 50% Spandex Metallic Party All-Season Relaxed Fit Casual Sleeveless Vest Machine Wash Cold with Like Colors Measurement (in inches) International Size----------Chest Girth----------Shoulder Width XS------------------------------34 1/4--------------------------13 5/8 S--------------------------------36 1/4--------------------------14 1/8 M-------------------------------38 1/4--------------------------14 5/8 L--------------------------------41 3/8--------------------------15 1/2 XL------------------------------44 1/2--------------------------16 1/4