The vault jumpsuit is a piece of clothing in Fallout 4. This piece of apparel was the required clothing for every vault and is comprised of a light blue jumpsuit with a yellow line around the neck, middle and sleeves. It increases Energy Resistance by 5 and Radiation Resistance by 10 when worn. The yellow stripe on the suit is actually a gold foil that aids in heat dissipation and works with the suit's integrated biometric scanners. Vault jumpsuits are worn by the inhabitants of the vault that is represented by the number on the jumpsuit.
Vault jumpsuit (Fallout 4) | Fallout Wiki | Fandom
I mean sure, wearing the vault jumpsuit and a random Power Armor may be enough to get you through your first playthrough. And enough alternative armors are laying around to keep you busy for a while. Luckily people realized this and modders of Bethesda games have had many years to perfect the art of tending to your every desire. Check Out This Mod. On a more serious note, we have a mod that instead of completely destroying immersion like the previous one, will actually make the game more lore-friendly than before. And if you like covering your waistline with a shiny, metallic belt, why not go all the way and protect your entire body? Not only that, but you can also wear regular pieces of armor over it.