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Dick Grayson became Nightwing after he was dismissed from the role of Robin at eighteen. Grayson's Flamebird was Bette Kane. He featured in a Nightwing series from 1996 to 2009; since Wayne's apparent death, Grayson has become the new Batman, subsequently retiring his Nightwing mantle.
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Grayson's Nightwing costume was a high-tech suit specially designed for his high-flying acrobatic style. His gauntlets and boots each contained eight compartments in which he could store items. They had a self-destruct feature built into them, similar to the ones in Batman's utility belt, and, as another security measure, the suit contained a one-use-only taser charge, which automatically emitted a high-voltage electrical shock when someone attempted to tamper with either the boots or gauntlets. Each gauntlet's sections could contain a wide array of equipment, such as sonic or smoke pellets, modified batarangs ("Wing-Dings"), knockout gas capsules, and throwable tracers. The right gauntlet was also equipped with a 100,000-volt stun gun. Like the gauntlets, his boot compartments could carry vital equipment such as flares, a rebreather as protection against any airborne non-contact toxins, a mini-computer equipped with fax, modem, GPS and a minidisk re-writable drive. Other items were lock picks, a first-aid kit, a mini-cellphone, flexi-cuffs, antitoxin assortment, wireless listening devices and a small halogen flashlight. After coming to New York, Dick added a black utility belt to his costume, eliminating the need for his boots and gauntlets. Held in spring-loaded pouches in the back of his costume, Dick carried a pair of Escrima truncheons made from an unbreakable polymer that were wielded as both offensive and defensive weapons. Some depictions displayed these tools with the mechanism to shoot a grappling hook attached to a swing line (like Daredevil's billy clubs), while, in other instances, he was either seen using a "line gun" like the one Batman uses or using the grappling/swing lines either stored in or able to be launched from his gauntlets.
* Grayson & Nightwing info thanks to Wikipedia