Product Introduction: 1. Luxurious Material: Material Composition: 80% polyester and 20% silk. Made of soft material and the fabric on the front and back of the vest is different. The front is polyester and the back is silk material.It is easy to wear and comfortable for businessmen to move around every day to work or job hunt, and retains a beautiful texture even after wearing it for a long time.It has excellent breathability and heat retention, and is easy to use and can be worn in spring, autumn, and winter. 2. Simple design; Popular design; Slim, V-neck, Collarless, Lightweight, 5 Buttons, Adjustable Buckles, Chest Pockets, 2 Functional Pockets; Note: The left and right pockets of the waist are sewn in, so if you cut it with a pair of scissors you can open the pockets. 3. Occasions: Formal suit vest is a versatile item that can be used in any wardrobe. Just wear a vest for a mature and fashionable style that looks cool with a shirt, suit, or tuxedo.Recommended for business, formal, weddings, parties, concerts, recitals, choirs, etc. 4. Note: This product is 2 sizes larger than US and Japanese sizes.Please refer to the size chart for detailed measurements. Please note that there may be a 0.4 - 0.8 inch (1 - 2 cm) difference due to the measurements taken on a flat surface. When cleaning in a washing machine at home, please use a gentle cycle with a water temperature below 86°F (30°C).Iron with a cloth and medium heat.