the "Kelvin timeline" for the fact it was created when the late twenty-fourth century Romulan Nero destroyed the USS Kelvin, on which Kirk's parents served. Kirk's father is killed, and Jim Kirk is born in space three months prematurely after his mother is evacuated from the Kelvin. The uniform design for the reboot basically recreates the original series uniforms, but with some cosmetic changes. Star Trek (2009 film) The delta insignia badge is now a metal pin rather than a sewn-on patch, gold for flag officers and silver for all lower-ranked officers. The shirts are now in two layers: a wide-collared over-shirt color-coded gold, blue, or red for department as in the original series, with a quilted pattern and a colored hem-line from the neck to the armpit; and a black undershirt, visually imitating the black collar of the original TOS design. The over-shirt has the division delta badge shape printed onto the fabric, providing a textured appearance. Rank is indicated by 1 to 4 silver metallic-cloth bands worn above the overshirt's cuffs (1 for lieutenants, 2 for commanders, 3 for captains, and 4 for flag officers). As in the original series, female officers wear dresses, some with short sleeves (seen on Lt. Uhura), others with long sleeves (as seen on some of the background extras). Also, a number of women onboard can be seen wearing the long sleeve top and pants uniform similar to those worn in "The Cage". Unlike other Trek, this uniform is worn only aboard starships - other personnel wear black one-piece uniforms of a much more "military" appearance. In an unexplained change from previous series, many female crew members wear nail polish (Uhura wears black polish, while many extras wear red). Dress uniforms for academy cadets and staff are crimson, while flag officers (fleet captains and admirals) use a gray uniform with a white false-plastron front. The design is similar to that in The Motion Picture, stated by designer Michael Kaplan in the book Star Trek: The Art of the Film to be a deliberate homage. Rank is indicated by 1 to 5 paired diamond-shaped silver-metal "pips" worn on the tunic's shoulder-boards (ensigns wear 1 paired pip, lieutenants wear 2 paired pips, commanders wear 3 paired pips, captains wear 4 paired pips, and flag officers wear 5 paired pips). One significant change from TOS is the addition of the peaked cap to the dress uniforms.