Zippers: The Secret BrakePreventing wardrobe malfunctions with a hidden latch

From the show

Why it looks like that

We trust zippers to stay closed, but friction alone isn't enough to fight gravity and movement. The pull tab on your jeans contains a sophisticated cam-lock mechanism designed to anchor the slider in place. By flipping the handle down, a tiny metal pin inserts itself between the teeth, acting as a mechanical parking brake for your clothes.