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.
Mortis Errata Mag-Runner Outfit
Powertech Lock Box from the Defiance Store
Mortis Errata Mag-Runner Headgear
Powertech Lock Box from the Defiance Store
Mountain Survivalist Headgear
Survivalist Supply Crate from the Defiance Store
Mountain Survivalist Outfit
Survivalist Supply Crate from the Defiance Store
Old Faithful Headgear
Von Bach Gunslinger Cache from VBI faction vendor after completing the Gunslinger DLC missions.
Transferred if owned in Defiance Classic
Omega Recon Outfit
Transferred if owned in Defiance Classic
Omega Recon Headgear
Transferred if owned in Defiance Classic
OT-22R "Obliterator" T.I.T.A.N. Outfit
Obliterator T.I.T.A.N. Bundle
Transferred if owned in Defiance Classic
OT-22R "Obliterator" T.I.T.A.N. Headgear
Obliterator T.I.T.A.N. Bundle
Transferred if owned in Defiance Classic
Pilgrim of the Guiding Light Outfit
Transferred if owned in Defiance Classic
Plague Doctor Mask Headgear
Biohazard Lockbox from the Defiance Store
Transferred if owned in Defiance Classic
Stratotech Defiance 2050 [Source]
3PL9 WDFG DKPR 9LE7 P7Y7 [Redeem]