Complete the indicated task to unlock the corresponding item. Then enter your iDroid's "Development" menu to get the item after meeting any other requirements.

Item	How to unlock
Bandana	Complete Side Op 143.
F-Ballista (D-Walker)	Extract 1,000 enemies.
Furicorn Uniform (D-Horse)	Complete Side Op 144.
Gray Fox (1998) Uniform	Complete all missions, except the High Difficulty missions.
Gray XOF Uniform (Quiet)	Watch Quiet's Interrogation Scene.
Hand of Jehuty	Complete Side Op 49.
Infinity Bandana	Complete Mission 46.
Leather Jacket Uniform	Complete Mission 46.
Naked Gold Uniform	Earn an "S" rank on all High Difficulty missions.
Naked Silver Uniform	Complete all High Difficulty missions.
Raiden Uniform	Earn an "S" rank on all main missions, except the High Difficulty missions.
Silver Bionic Arm	Complete all High Difficulty missions.
Sniper Wolf Uniform (Quiet)	Complete Mission 40.
Stealth Camo	Complete Huey Emmerich's storyline.
Tactical Fulton Unifrom (D-Dog)	Find the First Aid Manual Blueprint at Masa Village in Central Africa.
Water Pistol	Complete Mission 18.
Wormhole Fulton	Complete Side Op 50.