Over the years it has contained items such as plastic explosives, nerve toxins, batarangs, smoke bombs, a fingerprint kit, a cutting tool, a grappling hook gun, and a "re-breather" breathing device. In some of his early appearances, Batman used sidearms (see especially Detective Comics #32, September 1939), but since that time, he has eschewed their use because his parents were murdered by a gunman. Some stories have relaxed this rule to allow Batman to arm his vehicles for purposes of disabling other vehicles or removing inanimate obstacles
The costume Batman wears is composed by kevlar and a little percentage of titanium; it's bullet-proof and resistant to various types of attack (explosions, impacts, falls, etc...). It's also flame-retarding and insulating. The gloves and the boots are reinforced to rebound the impact of punches and kicks. The gloves have also some metallic blades on their sides. The cape is super-light and it can be used to glide. The mask has a little percentage of lead, which shields the face of Batman from x-ray powers or x-ray technology; it has also an infrared viewer and auditory sensors, sonar, night vision,which improve Batman's senses. The mask, is also accessorized with some security systems (aggravating gas, electric blasts, ecc...) like the utility belt. The mask is also a transmitter receiver de voice and video.
Batman keeps most of his personal field equipment in a signature piece of apparel, a yellow utility belt.The utility belt has a button to call the car in a few appearances on Justice League, the belt has a button teleportation. Over the years it has contained items such as plastic explosives, nerve toxins, batarangs, smoke bombs, a fingerprint kit, a cutting tool, a grappling hook gun, and a "re-breather" breathing device. Superman had entrusted Batman with a ring made of kryptonite, to be used should the Man of Steel ever need to be reined in (due to being mind-controlled by a villain, etc.).