The first two are leather overcoats, you can loot them from tonnes of hostile npcs or make them yourself by crafting leather armor with a bolt of cloth (except for a black bolt of cloth, which yields a different, sleeveless sprite). Your character won't ever have the hood in the second image though as it's part of an npc-only sprite. The third image is a plain robe, you'll find them randomly and non-randomly in various places, some NPCs will wear them (the Tchortist in Foundry, various hobos and zoners in Core City, etc.) and overall they aren't particularly rare, but they're also more or less useless for general wear as they provide no protection and do nothing but reduce your perception by 2.
