A suit is best business card of a man. A man's personal taste can be seen in way he dresses. When men wear suits, detail and fit cannot be ignored.
In secular etiquette, men should wear suits according to three rules:
Principle of three colors: no more than three colors can be worn on whole body of a suit for formal occasions;
Three rules: when wearing a suit, matching belt and leather shoes must be same color;
Three taboos: do not remove trademark on left sleeve of the suit, combine completely outdated socks, wear short-sleeved shirts.
When attending a very formal event, a button-down cuff shirt is first choice to wear inside a suit. The sleeve length of shirt should be at tiger's mouth when naturally down, and cuffs and wrist when button-downs are at their best. The length of suit sleeve should be about 1.5 cm shorter than length of shirt sleeve, which can not only reflect a sense of hierarchy, but also keep suit cuffs clean.
For formal occasions, tie and pocket square are very important accessories that add finishing touch and are often referred to as "soul of suit". When wearing a full suit, shoes are required. At this time, it is recommended to choose socks of same color as trousers or leather shoes.
In short, menswear gets a lot of attention and details are everywhere. Although it is not as diverse as women's fashion, but to capture essence, you need to make a lot of effort.