A 40-year-old man looks good in black, white and gray short sleeves. Black, white and gray, conservative and simple. Black, white and gray is a common color, regardless of age, a 40-year-old man wearing black, white and gray has a steady and practical image. Short sleeves are one of the indispensable clothes for people in summer. With its natural, comfortable, chic and dignified advantages, it has gradually replaced the old pattern of men wearing vests or sweatshirts plus a short-sleeved shirt or a Hong Kong-style shirt, and has become a fashion that people are happy to wear.