Five buttons are tight vests, and three buttons are loose vests. Fat people are only suitable for loose clothes, so fat people are suitable for wearing three-button vests.

A vest is a collarless and sleeveless short coat. The main function is to keep the front chest and back chest warm and facilitate the activities of hands. You can wear it under your coat or under your underwear. The main varieties are various styles of suit vests, cotton vests, down vests and wool vests.