Father's Lab Coat

Father's lab coat is a piece of clothing in Fallout 4 worn by Father.

Characteristics
Father's lab coat is a Unique Lab coat with a white collared shirt under a green sweater vest. It also provides a bonus of +2 Intelligence when worn. The coat can also be equipped with Ballistic weave to add Damage Resistance at an armor workbench.

Locations
Father's lab coat can be obtained after siding with The Institute. When you have completed Nuclear Family, speak to Allie Filmore and she says that the director room is yours. The Lab Coat can be located in the director room with the bed in it on a table next to a Institute Division Head Coat.

It can also be obtained by killing Father and then retrieving it from his inventory.

It's also available to be pickpocketed briefly after Mass Fusion and before ending Powering up. Although not sure if this is a bug or not.

Bugs
It is possible to get 2, by killing father, and before his body is cleaned up, it may respawn on his body. Allowing you to get 2.