T-shirt, also known as T-shirt and T-shirt, is one of people's favorite clothes in spring and summer, especially in the hot summer. T-shirt, with its natural, comfortable, natural and dignified advantages, has gradually replaced the pattern of men wearing a vest or T-shirt plus a short sleeve shirt or Hong Kong shirt in social occasions, Become a seasonal costume that people like to wear. At present, it has become a fashionable dress that men, women, old and young all over the world love to wear. It is said that the annual sales volume of the whole world has reached billions of pieces, and jeans constitute the most popular clothing with the largest number of people in the world.