the connection between button-down shirts and sporting clothing is well established in the broader history of menswear.
The locker loop fits into the same practical philosophy.
The shirt was not merely supposed to look good.
It was supposed to function.
From Sportswear to Everyday Clothing
One of the fascinating things about fashion is that practical features often survive long after the original need disappears.
A feature is invented for a particular purpose.
People become accustomed to it.
It becomes associated with a certain style.
Eventually, the feature remains even when