Ezio Auditore's robes

The Assassin Ezio Auditore wore at least five sets of robes during his memories that descendant Desmond Miles accessed. Ezio had two customizable sets of robes (customizable through adding armor, changing dye colors and equipping different capes) and two special sets of robes that came with a set of unbreakable armor, which could not be customized.

Giovanni's robes
Ezio inherited the Assassin Robes of his father, Giovanni Auditore, after he was executed. These robes were symbolic for the Assassin Order, with the beaked hood and the faded white cloth.

Appearance
The standard Assassin robes were worn over the top of Ezio's normal clothes and so his boots, trousers and sleeves remained the same. The upper body features a hood with the center shaped to resemble an eagle's head. The hood was connected to the robes, with the torso bearing an open collar.

The lower part of the robes were doubly layered, with the back of the robes trailed down to be longer than the front. Around the waist was a long red sash with belts that were used to store throwing knives, smoke bombs, bullets, poison, and medicine. The belt also held together an ornate Assassin insignia. The robes also had a leather spaulder where a cape was attached, draped over and around Ezio's left arm and shoulder.

Customization
The standard Assassin's robes could be dyed with any color that a Tailor had to offer. Armor could also be added, and any combination of Leather, Helmschmied, Metal and Missaglias armor pieces. However, for purely stylistic choices, any combination of armor pieces may have been used together if one did not mind having less (or more) health squares.

Ezio had a choice to wear one of four capes with the Assassin's Robes; the Plain Cape, the Medici Cape, the Venetian Cape and the Auditore Cape, although the color of the Medici, Venetian, and Auditore capes couldn't be changed.

Roman robes
After the siege of Monteriggioni, Ezio was given a new set of robes by Machiavelli that were a cross between Ezio's original robes and Altaïr's Robes.

Appearance
Ezio's new robes showed similarities between Giovanni and Altaïr's robes mixed together, as they had a long, layered lower section, although they maintained the open collared torso similar to Giovanni's robes, and included a new closed collar beneath. The hood shape from the previous robes had been kept as well as the wide, red sash displaying the Assassin's insignia and the function of carrying Ezio's throwing knives. The robes continued to feature the cape over Ezio's left arm and shoulder with a leather spaulder (although it is plated in cover art).

Customization
The customization system had been improved, with the opportunity to dye the cape separately to the main body of the robe, allowing for many color combinations. Most of the previous dye colors had returned, although some of them had been tweaked, renamed or both.

Again, the armor system allowed for further customization, with four new armor sets: the Roman, Rondelle, Plate, and Seusenhofer armor sets (having similar stats to the Leather, Helmschmied, Metal, and Missaglias respectively), which could all be used in any combination. The Auditore, Medici, and Venetian capes also returned, with the addition of the Borgia Cape, though the plain cape was the only one which may be dyed.

Master robes
Ezio had once again changed his outward appearance, having an all-new set of robes that differed greatly from his previous attire. Unlike his previous outfits, his new robes did not appear to include a cape and these robes were largely dark grey-blue in color, rather than the usual Assassin white. These new robes also had grayish white fur padding on the left shoulder and under both bracers, as opposed to the leather his previous outfits had, and Ezio now wore a dark blue scarf around his neck instead of the open style or collar seen in his previous outfits. Ezio's new robes were also notably shorter than the robes he had worn previously, the overall length of them being closer to that of Giovanni's Robes.

The robes also bore the Constantinople Assassin insignia and a small, adorned buckle in a shape of diamond that connected the belts which crossed over his chest. There was also an upside down insignia on the tip of the hood.

Additionally, small patterns appear to be imprinted on the grey fabric of the robes.

Special Robes
For information regarding the above, please refer to their respective articles.
 * Armor of Altaïr
 * Armor of Brutus

Trivia

 * In Assassin's Creed: Brotherhood, there is a hidden method in which Ezio's armor can be removed. If the player has the Armor of Brutus worn and returns to Sequence 2, before going to the blacksmith and equipping Roman Spaulders, when they exit the replay of the memory, Ezio will only have the Roman Spaulders equipped. However, if the player goes back to the hide-out on Tiber Island, they can re-equip any armor set.
 * When playing the third Cristina Memory, Ezio is wearing the Medici cape, despite not possessing the cape during Assassin's Creed II.
 * On the front cover art for Assassin's Creed II, Ezio is shown wearing a variation of the Metal Pauldrons. However, on the back cover art, he isn't wearing any pauldrons other than the one that came with Giovanni's robes.
 * In the Assassin's Creed: Revelations E3 Trailer, Ezio is shown with a cape on his journey to Masyaf similar to that of his previous robes. But upon his arrival, he was ambushed by the Templars and was forced to remove it in battle. The cape may have only been used for travelling purposes besides.
 * Also, during the Combat Trailer for Assassin's Creed: Revelations, Ezio is seen with a cape, although only while in Cappadocia.
 * In promotional artwork and trailers, Ezio is shown with the Assassin insignia of Masyaf rather than that of the Constantinople Assassin Guild's, while the adorned buckle for his left pauldron bears the Renaissance Assassin insignia rather than the diamond symbol.