Montblanc has blond hair slicked to the back, his pom-pom and wings are orange while his fur is brown. In all his game appearances he has dark brown tips on his ears (although in some artwork Montblanc does not have them), in contrast with most other Moogles. In some art his eyes are gray, with a few exceptions, including his Final Fantasy XII artwork’s eye color which are brown and his Final Fantasy Tactics A2: Grimoire of the Rift artwork with lavender gray eyes.
His upper clothing consists of a wide standing turtle neck. He wears a green jacket with a yellow cloth lining. Each of his sleeves have lace cuffs, probably cut-work. His bottom garment are red-brown harem pants. He also wears a brown belt with a bag on it, also known as a belt pack. This is first visible in Final Fantasy XII. Montblanc also wears brown fingerless gloves and shoes, which have toe caps and yellow tongues.
Montblanc has a kind personality, and he seems to save almost everyone he sees. In Final Fantasy Tactics Advance Radio Edition, it is shown that he is frequently loud and does get easily angry, especially with his little brother Nono. He is also known to be reliable and trustworthy, and this is shown when Montblanc is trusted to help Marche to make Ivalice revert to normal. He is often found speaking in metaphors and idioms.