Outfits and Headgear are cosmetic only items. You can select 1 out of 4 outfits at the character creation screen. You can obtain outfits by completing some Pursuits, some Missions or purchase them from the game store.
Outfits are the entire appearance from the neck down and Headgear is the head only.
Revolutionary Specs Headgear
Chance from Corporate Espionage Lockbox
Transferred if owned in Defiance Classic
Riveter Headgear
Transferred if owned in Defiance Classic
Scrapworks Salvager Headgear
Transferred if owned in Defiance Classic
Scrapyard Machinist Headgear
Supplies (Earth Republic Camp)
Transferred if owned in Defiance Classic
Sedge Hat Headgear
7th Legion Supply Crate from the 7th Legion Faction vendor at Overpass.
Shotgun Murderface Headgear
Season 2 Episode 4 EGO Code reward.
Transferred if owned in Defiance Classic
Shrill Hunter Headgear
Part of the Shrill Hunter Pack released March 2016
Transferred if owned in Defiance Classic
SN-3L "Sentinel" T.I.T.A.N. Headgear
Sentinel T.I.T.A.N. Bundle
Transferred if owned in Defiance Classic
Special Ops Veteran Headgear
Veteran Supply Crate from the Defiance Store
Spirit Rider Hunter Headgear
Transferred if owned in Defiance Classic
Stitched Pumpkin Headgear
Halloween Event 2014 or Blackened Hellfire Supply Crate
Stratotech Headgear
Powertech Lock Box from the Defiance Store
Promotion code for Defiance 2050 Launch
Sweet Shades Headgear
Rewarded by mistake for people who bought the Season Pass. Owners were allowed to keep them.
Stratotech Defiance 2050 [Source]
3PL9 WDFG DKPR 9LE7 P7Y7 [Redeem]