Batman Reveals the Origin of an Iconic Utility Belt Gadget


  • Flash’s chemistry knowledge upgraded Batman’s smoke bombs significantly.
  • Batman’s use of gadgets proves his reliance on technology for crime-fighting.
  • The Flash’s assistance reminded Batman of the value of teamwork in heroism.

Warning! Spoilers ahead for Batman #147!One of Batman’s most infamous gadgets wouldn’t have been nearly as effective if it weren’t for a particular super-friend’s helping hand. While on the run, Bruce Wayne returns to the Justice League’s very first base and recalls how a certain teammate helped him improve one of Batman’s most trusted gadgets.

In Batman #147 by Chip Zdarsky and Jorge Jiménez, Bruce has just escaped Zur-En-Arrh’s prison and has left Gotham City to mount a counterattack against his twisted opposite. He heads to Happy Harbor, Rhode Island, and visits the Secret Sanctuary, the very first base the Justice League ever used.

Batman thinks back on better times and remembers when he was trying to improve his smoke bombs. Barry Allen lends a hand and introduces Batman to a yellow phosphorus that Flash developed that keeps the smoke hanging in the air far longer than Bruce’s previous versions.

Flash’s Chemistry Knowledge Improved Batman’s Smoke Bombs

Batman Utility Belt DC Comics

Batman may not have powers, but what he lacks in superhuman abilities, he more than makes up for in toys and gadgets. Over the course of his long career, the Dark Knight has fashioned dozens of gadgets to help him in his crusade against crime. From lock picks to rebreathers and even small pieces of kryptonite, Batman’s utility belt holds dozens of things to help him get out of any situation. One can always count on several standbys in Batman’s belt such as a grapple gun, a couple of batarangs, and of course, smoke bombs for an easy escape.

It should come as no surprise that the Flash helped upgrade Batman’s smoke bombs. Barry Allen is one of the most intelligent Justice League members and knows his way around chemicals. Despite Batman’s resistance to help, even he can’t deny that the Flash’s yellow phosphorus did indeed provide much better coverage for Bruce’s smoke bombs. This revelation isn’t just a good way of explaining how the Dark Knight’s smoke bombs got better over the years. It’s an important reminder that Batman only got better at being a superhero because he trusted and worked with other heroes like him.

The Flash Showed Batman How Valuable Teamwork Can Be

Flash Advises Batman DC

Could Batman have eventually found a way to improve his smoke bombs on his own? Undoubtedly yes. But Flash showed Bruce that he wasn’t alone. Others in the Justice League had the same passion for making the world a better place as he did and they wanted to make sure Batman was the best hero possible. Flash helped Batman realize that teamwork made him a more effective hero, something that he applied to his own crusade as Bruce began building the Bat-Family. This upgrade to his smoke bombs was one of the most pivotal points in Batman’s development as a hero.

Batman #147 is available now from DC Comics.

Batman #147 (2024)

Batman #147 Main Cover: Bruce holds his Batman cowl in front of other images of Robin Damian Wayne and Amanda Waller.

  • Writer: Chip Zdarsky
  • Artist: Jorge Jiménez
  • Colorist: Tomeu Morey
  • Letterer: Clayton Cowles
  • Cover Artist: Jorge Jiménez

Batman Stands in Detective Comic Art by Jason Fabok


One of DC’s most iconic heroes, Batman is the vigilante superhero persona of billionaire Bruce Wayne. Forged by tragedy with the death of his parents, Bruce dedicated his life to becoming the world’s leading martial artist, detective, and tactician. Recruiting an entire family of allies and sidekicks, Bruce wages war on evil as the dark knight of his hometown, Gotham City.