When a man wears a belt is actually a big problem!
Pants with waist buckle
This design is relatively old-fashioned and can usually be found on some very formal and even dress pants. Its original meaning is to help you adjust the waist of your pants slightly, so that you can fit it without the help of a belt. And usually this type of pants does not have a belt loop, so if you have this type of pants, you do n’t have to worry about the problem of matching without a belt.
These formal trousers are usually fitted with belt loops. But I think the main difference is the button on the front. The design of the button on the front of the trousers can give you a little clue.
If the front end is a hidden buckle, then you can worry about one less thing. Of course, a belt will enhance the sense of style; but because the cloth covers the buckle, this design will not affect the overall fit. This design was originally designed to eliminate the need for a waist belt, and would not cause any problems without wearing a waist belt.
If the front button is exposed, I would suggest that you always wear a belt. The exposed button will affect the overall appearance. Although the buttons are of the same color, it will not be very prominent, but as a fan of chasing casual wear, this small detail is what you should pay attention to.
Designed for casual jeans, usually equipped with belt loops. But this does not mean that you must wear a belt, those belt loops are only part of the design.