Successfully complete the indicated task to unlock the corresponding costume:

Classic Assassin and Uplay costumes:
------------------------------------
Altair's Robes          : Have a saved game file from Assassin's Creed, and an internet 
connection to retrive the costume.

Connor Kenway's outfit  : Have a saved game file from Assassin's Creed 3, and an internet 
connection to retrive the costume.

Edward The Legend outfit: Purchase for 20 Uplay points.

Ezio Auditore's Robes   : Have a saved game file from Assassin's Creed 2, Assassin's Creed: 
Brotherhood, or Assassin's Creed: Revelations, and an internet connection to retrive the costume. 

Unlockable costumes:
-------------------
Explorer outfit: Successfully complete Community Challenge #6. 
Community challenges will randomly appear while online.

Governor's outfit: Find and share a social chest. Social chests will randomly 
appear while online.

Mayan outfit: Find and solve all 16 Mayan Stela puzzles to unlock the secret door 
in Tulum (70, 405 coordinates). Open the secret door to get the Mayan outfit. 
It deflects all bullet attacks.

Officer's outfit: Successfully complete the "Great Reputation 1" trading mission 
to Gibraltar with Kenway's Fleet (Mediterranean Sea mission).

Stealth outfit: Successfully complete 50% of the Assassin Contract side quests. 
It decreases visibility and improves stealth.

Templar Armor: Successfully complete all Templar Hunt side quests, then open the 
cage in the Great Inagua hideout using the five Templar keys. It provides 25% 
damage reduction. 

Crafted costumes:
-----------------
Feline Pelt outfit : Craft it using a Jaguar Pelt and Ocelot Pelt.
Hunter outfit      : Craft it using a Red Howler Monkey Skin and White Jaguar Pelt. 
                     It reduces animal aggression.
Shark Hunter outfit: Craft it using a Bull Shark Skin and Hammerhead Shark Bone.
Whaler outfit      : Craft it using three White Whale Skins. 

General Store costumes:
-----------------------
Brown Cloak          : Purchase for 1,500 R.
Crimson Cloak outfit : Purchase for 3,000 R.
Merchant outfit      : Purchase for 10,000 R.
Pirate Captain outfit: Purchase for 8,000 R.
Pirate Cloak         : Purchase for 6,000 R.
Politician's outfit  : Purchase for 12,000 R.
Privateer outfit     : Purchase for 5,000 R.