Kyle Gallner as Impulse.

The Impulse outfit is a costume made by Oliver Queen's tailors to be worn by Bart Allen.

Physical Appearence

The suit mainly consits of scarlet, crimson and yellow. It has a scarlet zip-up hooded vest with yellow lightning symbol on the sides with crimson in-between the lines and a yellow lightning bolt symbol on the back. It has a brown belt and silver buckle, crimson pants and scarlet and red running shoes. A long-sleeved crimson shirt under the vest, scarlet arm bands and red sports sun glasses.

Flash Bart Allen SV S11 smallville1-4 500x384

Bart Allen's New Impulse costume.

Few months after Clark officially went public as Superman, Bart Allen changed his whole look, he shaved his hair back to his short blond hair, in order to cut down drag, similar to what swimmers do in order to be more aerodynamic when he runs.[1][2] He also changed his costume to a red sweatshirt with a white lightning bolt over his chest and torso and black sleeves along with black running pants, red, black and white high-tech running sneakers and red cuff around each wrist as well as a pair of red sports goggles with yellow lenses which also has an elastic band (to keep the shades from flying off as Bart drops out of super speed).

Season Six

Bart first wore the suit after joining Oliver's team of heroes. He used it when sneaking into Luthor Mansion to aqcuire information on Level 33.1 and later used it to sneak into 33.1. After being kidnapped by Lex Luthor, he was forced to run in a chamber, or be electrecuted to death. Clark Kent later saved him and he and the other members destroyed 33.1.

Justice and Doom

Bart wore the suit when he joined Green Arrow, Aquaman and Cyborg in stopping 33.1 worldwide.

Season Eight

Flash suit 2

Bart with Black Canary

Bart wore the suit once again when he returned to Metropolis to help defeat Doomsday. He and Black Canary subdued Clark, so that he wouldn't get in the way, and when Davis and Doomsday separated, Doomsday attacked them. The suit suffered minor damages.

Season Ten

Bart wore the costume to Carter Hall's funeral in Icarus.

Season Eleven

Flash Bart Allen SV S11 SMALL11-26 (3)

Superman and Impulse hanging out.

Few months after Clark officially went public as Superman, Bart Allen changed his whole look where he not only got a new costume but he also shaved his hair, in order to cut down drag, similar to what swimmers do.[3] He uses the new costume while hanging out with Superman.



  • Although it is the costume for Impulse, it more resembles the Flash Costume from the comics. However his new costume resemble more like the original Impulse look with hints of his previous costume.
  • As pointed out by Clark in Masquerade, the hoodie would fall off while super speed, yet this has yet to be seen to happen to Bart. However Season 11 writer Bryan Q. Miller announced a change in his costume mainly because of this fact.[4]
254px-Impulse - ready for a fight

Impulse as he appears in the comics

  • The colors of the costume are red and yellow. These are Bart Allen's signature colors as well as the colors of the Flash's costume. The second costume is a combination of red, white, black and a little blue more resembling Bart Allen's original Impulse costume in the comics.
Flash Vol 4 3 Variant

Barry Allen as the Flash.

*The sunglasses are similar to the ones worn on Impulse's costume in the comics.
  • This suit consist of simply a hoodie, shirt and jeans, making it the most basic costume of the ones's featured on Smallville.
  • Since the first time he wore the suit Bart has never worn the glasses again until he got his new suit.



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