Fallout 4 Apparel Overview  | For an overview of the topic, see Legendary. |
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Legendary Armor Effects are applied to basic armor in Fallout 4, that use special prefix modifiers that cannot be obtained elsewhere. They cannot be scrapped, but can be modified. They will appear on screen when picked up, and are marked with a star. Legendary armor pieces can also be awarded for completing certain quests and can rarely be found in tribute chests.
Legendary armor prefixes
Any legendary mod will add 2 Damage Resistance and 2 Energy Resistance to the armor.
| Name | Stat | Form ID | Found |
|---|---|---|---|
| Acrobat's | Reduces falling damage by 50%. (Equipping two items with this effect will prevent fall damage) | 001F1DF9 | |
| Assassin's | Reduces damage from humans by 15%. | 001F1DF3 | Destroyer's chest piece, Protector's left armguard, Silver Shroud Costume (armor) |
Atom's Bulwark 
|
Damage resistance and energy resistance increase with Rads. | xx057054 | Atom's Bulwark only |
| Auto Stim
|
Automatically use a stimpak when hit while health is 25% or less, once every 60 seconds. | xx00F5BC | |
| Bolstering | Grants increasing energy and damage resistance the lower your Health (up to +35). | 001F8165 | Steadfast BOS combat armor chest piece, Apocalypse left greave, Mark 3 synth chest piece |
| Cavalier's | Reduces damage while blocking or sprinting by 15%. | 001F579D | Destroyer's left arm |
| Chameleon | Enemies have a harder time detecting you while you're sneaking and not moving. | 001F4D18 | Mark 2 synth chestpiece, Mark 4 synth chest piece |
| Fortifying / Champion | +1 Strength and +1 Endurance | 001CF57F | Champion left arm, Black Ops chestpiece |
| Cloaking
|
Being hit in melee generates a Stealth Field once per 60 seconds | xx0107B0 | |
| Cryogenic
|
10% chance to freeze melee attackers, once every 20 seconds. | xx0107AF | |
| Cunning | +1 Agility and +1 Perception | 001CF57C | Recon marine helmet, Mantis left greave, Champion right arm, Wastelander's chest piece, Mark 2 synth helmet |
| DiMA
|
+1 Agility, +1 Endurance and +1 Intelligence. | xx043225 | Acadia's Shield only |
| Diver Suit
|
Wearer gains ability to breathe under water and protection from radiation. | xx05D371 | Rescue diver suit only |
| Duelist's | 10% chance to disarm melee attacker on hit. | 001F3A49 | Mantis left armguard |
| Exterminator's | Reduces damage from Mirelurks and bugs by 15%. | 001F81ED | |
| Freefall | Prevents falling damage.(Needs to be present on both equipped leg armors) | 00093BBD | Freefall Legs only |
| Ghoul slayer's | Reduces damage from ghouls by 15%. | 001F1DEE | |
| Grognak's Loin-cloth | Increases the wearer's strength and melee damage. | 00225AEE | Grognak costume and wildman rags only |
| Hunter's | Reduces damage from animals by 15%. | 001F1DEB | |
| Incendiary
|
30% chance to ignite melee attackers, once every 20 seconds. | xx0107AE | |
| Inquisitor's Cowl
|
Wearer's Intelligence increases with Rads. | xx05D372 | Inquisitor's Cowl only |
Little Menace's 
|
+1 Strength. -1 Perception. Reduces detection from moving and makes the wearer 15% faster. | FEXXX835 | Pint-Sized Slasher costume only |
| Lucky | +2 Luck | 001CF57E | Mark 4 synth left leg |
| Martyr's | Temporarily slows time down during combat when you are at 20% or less Health. | 001F2D3D | Devastator's right greave, Recon marine left arm, Apocalypse armor chestplate |
| Mutant Slayer's | Reduces damage from super mutants by 15%. | 001F1DF4 | Protector's right armguard, Wastelander's right leg |
Nuka-Girl 
|
Grants ability to breathe underwater and +1 Charisma. | xx04BDA7 | Nuka-Girl Rocketsuit only |
| Poisoner's | +25 poison resistance. | 001F3072 | |
| Powered | Increases Action Point refresh speed. | 001F7A75 | Visionary's T-60c helmet, Commando chest piece, Honor, Mark 3 synth right arm |
| Punishing | Reflects 10% of melee damage back on attacker. | 001F1E47 | Vengeance, Devastator's chestpiece |
| Rad Powered
|
Grants additional Strength the higher your rads.
(+1 Strength per 133 rads) |
xx010B86 | |
| Safecracker's | Increases size of sweet spot while picking locks. | 001F3CA9 | |
| Sentinel's / Titan's | Reduces damage while standing and not moving by 15%. | 001F57E4 | Overseer's right armguard, Recon marine chest piece |
| Sharp | +1 Charisma and +1 Intelligence. | 001CF57D | Destroyer's helmet, Mechanist's helmet |
| Sprinter's | Increases movement speed by 10%. | 001F1C2F | The Captain's Hat, Oswald's Tophat, Destroyer's right leg, Destroyer's left leg, Black Ops right shinguard, Recon marine right arm |
| Troubleshooter's | Reduces damage from robots by 15%. | 001F81EE | Champion chestpiece, The Dapper Gent |
| Unyielding
|
+3 to all stats when you are at 25% or less health | xx010BB5 | Unyielding Synth Chest Piece |
| VATS Enhanced | 10% reduction in Action Point cost in V.A.T.S. | 001F1D62 | Exemplar's T-60c, Overseer's left armguard, Commando helmet |
* The Rad Powered effect actually grants the Strength bonus every 133.3 rads, but due to the way Fallout 4 handles decimal numbers, the Strength points are granted at 133, 267, 400, 533, 667, 800 and 933 maxing out at +7 Strength.
Power armor
| Name | Stat | Form ID | Found in |
|---|---|---|---|
| Almost Unbreakable | Quadruples durability. | 001F1E0C | Tessa's Fist only |
| Low Weight | Low carry weight. | 001F1E0B | |
| Nuka
|
+3 Agility with all pieces equipped | xx01152A | Nuka T-51 Power Armor |
| Overboss Tesla coils
|
Deals Energy damage to nearby enemies. | xx04703C | Overboss power armor chest piece only |
| Piezonucleic Lining | Radiation exposure increases Action Point refresh speed.1 | 0022879C | Piezonucleic power armor |
| Quantum
|
Increases Action Point refresh speed with all pieces equipped | xx0417E8 | Quantum X-01 power armor |
Tesla 
|
Increases Energy damage. | xx00C575(right) | Tesla T-60 armor |
1 The legendary effect mod_Custom_PA_APRegenRad adds an enchantment ench_mod_LegendaryPA_RadsCoreHealth, which increases the power armor's fusion core drain by 50% and adds a perk LegendaryPA_RadsCoreHealth, that does not have any effect because its condition can not be fulfilled. Additionally, the legendary effect also increases damage resistance and energy resistance by 2.
Console command
Legendary effects can be added to items by dropping them on the ground and using the console command attachmod while having them selected, followed by the mod ID. You can't stack several mods on a single item, but you can stack over multiple pieces (armor). You can also replace a mod with another one via console. If the item is for some reason unclickable, legendary effects can be added to items using this alternative process:
- Drop the item on the ground.
- Pick up the item in the air by holding E(PC) (how you would normally drag ragdoll and other objects around).
- Open console and enter GetPlayerGrabbedRef. This returns the RefID of the item you're holding in the air.
- Take note of the returned RefID.
- Look up the ModID below for the desired legendary armor effect, note it as well.
- Enter the following in the console (substitute the appropriate RefID and ModID): [RefID].amod [ModID]
- For example, you would enter in something like this: f00726b.amod 001cc2ac.
- The item will drop to the ground, and when you go to pick it up, you will get an overview similar to the one you get when you pick up any given legendary item for the first time.
By utilizing the steps described above, it is possible to apply legendary effects to power armor pieces. Keep in mind, though, that contrary to regular armor and weapons, power armor can't be renamed, so keeping enhanced power armor pieces apart from others of the same name under these circumstances can quickly turn into a chore.
Bugs
When using armor with the Chameleon modifier, the Pip-Boy's display will be warped and the text colors over bright and blurry, making it difficult to read. If crouching and invisible, attempting to access the Pip-Boy will sometimes result in the UI being rendered partially or completely white and unusable. If standing and invisible, attempting to access the PipBoy can result in the PipBoy being transparent so the user is left looking through the character's arm.
- Can be solved by saving and then loading that save or going into 3rd person and back into 1st person. Another way to solve this is to be using the Fallout 4 Pip-Boy companion app on a mobile device, such as a smartphone or tablet.
- The over-bright, blurry Pip-boy effect seems to be the game adding the HUD and Pip-boy lighting/color together, so if you change one or the other in the Settings so that these colors contrast (i.e. red Pip-boy and green HUD), the Pip-boy becomes more readable, though still not as clear as when not "invisible".
- Each additional piece of chameleon armor equipped appears to slightly reduce the distortion of the Pip-boy display.
- There is a relatively uncommon bug whereas the player character will retain the effects of chameleon permanently, even after removing all buffed items. Suicide seems to fix this bug.
- The Martyr mod may not work at certain times unless you go into V.A.T.S. This seems to be related to having multiple items equipped at once with the Martyr effect.
- The Fortifying mod will add 10 carrying weight but no HP bonus. It does show you had +1 Endurance on S.P.E.C.I.A.L. chart. This might be an intended design, in case player buff too much HP with all armor pieces equipped in higher level.
- The Unyielding mod does not provide a +3 bonus to endurance.