Later in the 1920s Lee introduced a zipper fly and continued to expand.

The classic Levi cut with zippered fly is a best seller.

Now her hand was finished, and he felt her touch on his tight trunks, stroking the zipper fly.

(Easterners tend to prefer the zipper fly because it doesn't let in cold air.)

The man who would have been King was better known as the man who introduced zipper flies and velvet dinner jackets to formal attire.

The salesman put the handkerchief back in his pocket, then loosened his belt and undid the buttons above his zippered fly.

Most pants are manufactured with the traditional lace-up fly as a zippered fly is impractical and subject to damage due to stress in the rough and tumble of the game.

Esquire declared the zipper the "Newest Tailoring Idea for Men" and among the zippered fly's many virtues was that it would exclude "The Possibility of Unintentional and Embarrassing Disarray."

The Wrangler Jeans featured several innovations aimed particularly at cowboys: Felled outseams and inseams, rear pockets positioned for comfort in the saddle, 'no scratch' rivet pocket reinforcement, a zipper fly, and use of a strong tack in the crotch instead of a metal rivet.