T-shirts, also known as T-shirts and T-shirts, are one of people's favorite clothing in spring and summer, especially in the summer when the sun is scorching and scorching heat. T-shirts have the advantages of being natural, comfortable, unrestrained and dignified. It gradually replaced the old pattern of men wearing a vest or undershirt plus a short-sleeved shirt or Hong Kong shirt in social occasions, becoming the seasonal clothing that people are willing to wear. It has become a fashionable dress that men, women and children all over the world love to wear. It is said that the annual sales volume in the world has reached billions, and jeans constitute the most popular and most worn clothing in the world.