Utility Belts are used by Bruce Wayne to store special weapons and tools that aren't already built into the Batsuits. Utility belts are also used by Wayne's partner Robin.
History
Brass utility belt
Wayne designed a brass waistband to house select gadgets on the back. The belt is noticeably darker than the yellow chest emblem, when a shadow is cast over it disappears nearly completely in the darkness unlike the emblem. Wayne seems to be entirely satisfied with this design and never changed its look, despite constantly updating the Batsuit.
Alternate timeline variations
Black utility belt
Wayne rethought the belt completely in this timeline, starting with the color. The black belt was dark as the Batsuit itself, which at this point had a dark bronze color behind the emblem instead of yellow. He could then blend in with the shadows completely.
Sonar utility belt
After the regular Batsuits was destroyed by the Riddler, Wayne used a Sonar prototype utility belt for his Sonar Batsuit. The belt had a dark silver color and the emblem was bronze instead of black.
Current utility belt
After creating his 4th generation Batsuit, Wayne used a fourth utility belt similar to his belt on his Sonar Batsuit. It had the same kind of metallic, iridescent finish that could appear pewter-gray, jet black ora times dark blue under intense camera flashes. It had all new sonar technology upgrades. Batgirl's belt looks exactly like this.
Ice Armor belt
A minimalist chrome belts was present but indistinguishable from the rest of the chrome plating.
Development
- "We didn't like his yellow belt very much. So we made it black. FREAK OUT. Absolute freak out. It's in the fucking newspapers, "he doesn't got a yellow belt!" Straight back, "you've got to revert to a yellow belt on him, they've heard about it and they're very upset." So I said, "brass is yellow. Yellow enough." So we made it brass. All the yellow in Batman became brass. And the Batman fans bought it."
- ―Anton Furst, 1:23:34[src]