This is the industry standard. Generally, the styles are on the left side. Only formal uniforms or shirts will be sewn according to the standard of "washing labels for men on the right and women on the left", just like men's shirt placket buttons are nailed to the left, and women's shirts are nailed to the right. Side, in order to uniformly implement the principle of "women's clothing wears right and left" and "men's clothing wears left and right".