Notable appearances: Batman Begins, The Dark Knight, The Dark Knight Rises
In the original comics, Batman’s edged gauntlets served very little purpose other than to look snazzy. But when Christopher Nolan launched Batman Begins in 2005, he gave this design a logical reason for existing that has since been adopted by every version of the Caped Crusader.
In the movie, Bruce Wayne wore these gauntlets as a prospective member of the League of Shadows while he was training abroad. And once he returned to Gotham, he incorporated them into his Batsuit. The razor-edged spikes on these gauntlets can dig into the sides of buildings, block knife and sword attacks, and be used as an offensive weapon against enemies.
Later on in The Dark Knight, Lucius Fox invented new high-tech gauntlets for Batman that could actually fire mini Batarangs out of them as projectiles. This alteration memorably saved Batman’s life from the Joker towards the end of the movie.