Brand Q Men's Formal Prom Wedding Tuxedo Vest, Tie & Pocket Square Set in Black 100% Polyester Full Back Vest. Strap and Buckle in back to tighten to size 5-Button front closure. Besom pockets. Matching Bow-Tie included. Please note, that the chest and the waist area of the vest are the same size. If your belly measurement is bigger that your chest. Please use the belly measurement. Recommended sizing: Size XS (Chest/Waist 37"-38") Size S (Chest/Waist 39"-40") Size M (Chest/Waist 40"-41") Size L (Chest/Waist 42"-43") Size XL (Chest/Waist 44"-45") Size 2XL (Chest 46"-47") Size 3XL (Chest/Waist 51"-52") Size 4XL (Chest/Waist 53"-54") Size 5XL (Chest/Waist 59"-60") Size 6XL (Chest/Waist 61"-63") Every attempt has been made to display the picture of the product as close to the actual color as possible. However due to the system differences and display techniques it is impossible for the colors to be 100% true to life.