Doc wearing a bulletproof vest in 1985

" Suddenly remembering Doc Brown, he [Marty] turned and ran toward the sprawled figure, still lying face down on the asphalt [of the parking lot]. There were tears in Marty's eyes as he turned his friend over. / "Doc..." he said softly. "Doc... Please don't be dead, Doc..." / "Well, all right, if you insist," the apparently dead man replied, opening his eyes and smiling. / "You're alive!" Marty shouted. / "Of course I'm alive." / "But you were shot — I saw it!" Marty cried. "I saw it twice!" / "On instant replay, as it were?" Doc smiled again. / Marty nodded. / "The explanation is simple," Brown said. / He ripped open his radiation suit to reveal a bulletproof vest. / "It's the latest in personal protection," he explained. "Guaranteed to stop a slug from an elephant rifle at thirty yards." "
—From Back to the Future by George Gipe (quote, page 239)

Bulletproof vests were vests that were able to prevent bullets from penetrating the skin.


Dr. Emmett Brown was able to use a bulletproof vest after getting a letter from Marty McFly in 1955, which prevented him from being murdered by the Libyan terrorists on October 26, 1985.

In 1985A, former Hill Valley High School principal Stanford S. Strickland wore a bulletproof vest over his nightshirt to protect him from the slackers armed with pump-action shotguns, who were driving around the neighborhood terrorizing and even killing some of the residents.

In the movie A Fistful of Dollars, Clint Eastwood's character, the Man With No Name, would use a makeshift bulletproof vest.

Marty himself would use a stove plate as a makeshift bulletproof vest in his gunfight with Buford Tannen on September 7, 1885.

In 1931, Marty suggested supplying Doc with a bulletproof vest to protect him from the gunfire of Kid's gang. Doc states that it wouldn't work with the number of bullets they would use.