Born-Fly
Why is the zipper on pants also called a “fly”? - Quora
N.Flying - Wikipedia
Born-Fly
Where does the term 'zip up your fly' come from? Were all zippers
MOSI Outside: Clothing Eating Insects
Homelander, The Boys Wiki
Fly (clothing) - Wikipedia
1820-1829 Fashion History Timeline
Why are the buttons on trousers called flies? - Quora