|Height||182 cm (6'0")|
|Weight||68 kg (150 lbs)|
|Affiliation||Gotei 13, Soul Society|
|Position||Lieutenant of the 7th Division, President of the Shinigami Men's Association|
|Previous Position||4th Seat of 11th Division|
|Previous Division||11th Division|
|Base of Operations||7th Division HQ, Seireitei, Soul Society|
|Relatives||Chikane Iba (Mother)|
Iba has a distinctive hair cut and wears black sunglasses with his standard Shinigami uniform. He collects sunglasses, his main source being Gin Tonbo (銀蜻蛉, The Silver Dragonfly), the same shop where fellow Lieutenant Renji Abarai purchases his goggles. He also smokes and carries his Zanpakutō as a small blade inside his uniform. He has a large tattoo on his back consisting of a cat on fire and the kanji shōfuku (inviting luck). These features, plus his informal style of speech, are all strongly reminiscent of a typical yakuza. Seventeen months after Aizen's defeat, Iba has a fuller moustache and a new scar above his left eye. His hair is also more shaven, with three hairless lines running through it.
Iba enjoys fighting, like members of the 11th Division, but unlike many of them, puts his loyalty to his Division above his desire to fight and is not above retreating from battle. Iba tells Ikkaku Madarame that frontal assaults that lead to defeat are meaningless and that he must win however he fights. Iba is very loyal to his captain, though in the week after Kaname Tōsen’s betrayal, he spent a lot of time at the 11th Division headquarters in order to give his captain some space. Preceding their fight, Ikkaku mentions that Iba has become cockier since he left the 11th Division to become a lieutenant. Iba also seems to have recurring stomach problems, which he notes with shame on a few occasions. He and Ikkaku seem to have something of a working relationship, though it consists mainly of them dueling, drinking sake, then dueling again to see who has to get more.