In the world of DC, there were really two Batmen if you think about it. One as "the world's greatest detective" who typically fought other non-powered street-level characters like the Joker. The other was a man who defied all odds as a human, and went toe-to-toe with super-powered villains and cosmic threats alongside the Justice League. Loeb and Lee balanced this duality into one series and did the same with the Batsuit as well. It's almost a combination of the classic blue and gray suit we know best from the Adam West series, mixed with a little bit of Frank Miller's Dark Knight Returns suit. The result is a colorful suit that looks at home in the dark alley's of Gotham.
Batman's [uniform] is bulletproof and fire resistant, featuring a weighted cape and a cowl outfitted with night-vision technology and communications arrays; utility belt contains an arsenal of crime-fighting gear, including various types of offensive Batarangs, de-cel jumplines and grapnels, micro-camera, smoke pellets, acetylene torch, gas mask, rebreather, and flexi-cuffs among other miniaturized non-lethal weapons. [Batman] employs a variety of detective gadgets, including micro-computers and crime scene analysis kits; maintains a fleet of high-tech and high-powered vehicles, chief among the Batmobile, Batcycle, Batboat, Batplane and Batcopter; supersophisticated Batcave headquarters houses training facilities, forensics laboratories, computer databases, and maintenance bays for all Bat-vehicles.
Batman is often treated as a vigilante by other characters in his stories. Frank Miller views the character as "a dionysian figure, a force for anarchy that imposes an individual order". Dressed as a bat, Batman deliberately cultivates a frightening persona in order to aid him in crime-fighting, a fear that originates from the criminals' own guilty conscience. Miller is often credited with reintroducing anti-heroic traits into Batman's characterization, such as his brooding personality, willingness to use violence and torture, and increasingly alienated behavior. Batman, shortly a year after his debut and the introduction of Robin, was changed in 1940 after DC editor Whitney Ellsworth felt the character would be tainted by his lethal methods and DC established their own ethical code, subsequently he was retconned as having a stringent moral code. Miller's Batman was closer to the original pre-Robin version, who was willing to kill criminals if necessary.