If the fabric is highly elastic and fits well, there will be no wrinkles at the knees. The main reason for the wrinkle is that the fabric is not elastic enough, and the fabric is stretched when the knee is bent and cannot be completely retracted. When sitting, because the legs are bent, if you don't pull your pants up a little, they will be very tight. Under the action of force, after a long time, wrinkles will appear at the bend of the leg, that is, behind the trouser leg. When wrinkles appear, you can gently iron them with a low-temperature iron. In the ironing process, it is necessary to put thick oil paper for packaging on clothes and move the iron constantly to promote the spread and disappearance of wrinkles. This situation may be thin legs, but if it is a girl, it is recommended to try on the effect when choosing, just look plump. Generally, pencil cowboys will be more obedient and full, and it is also possible to choose the right number for straight pants.
If there are many wrinkles, it is largely a matter of fabric. For example, cotton pants are easy to wrinkle, while chemical fiber or wool pants are not so wrinkled. If you are short or thin, try to choose some loose or straight jeans to make people look more comfortable. Don't wear tight jeans or narrow your pants. Men with thick legs should choose straight pants with loose lines or jeans with large trouser legs. Don't wear jeans with narrow trouser legs or double trouser legs to minimize visual attention to legs. Due to the poor elasticity of cotton fiber, clothes made of cotton are always prone to wrinkle. Cotton-padded jacket is hygroscopic, soft and hygienic, comfortable to wear, but easy to wrinkle. When you loosen your hand, you will have obvious wrinkles and it is not easy to recover.