Female haircuts will conform to the following standards.

(a) Females will ensure their hair is neatly groomed, that the length and bulk of the
hair are not excessive, and that the hair does not present a ragged, unkempt, or
extreme appearance. Likewise, trendy styles that result in shaved portions of the
scalp (other than the neckline) or designs cut into the hair are prohibited. Females
may wear braids and cornrows as long as the braided style is conservative, the braids
and cornrows lie snugly on the head, and any hairholding devices comply with the
standards below. Dreadlocks (unkempt, twisted, matted individual parts of hair) are
prohibited in uniform or in civilian clothes on duty. Hair will not fall over the eyebrows
or extend below the bottom edge of the collar at any time during normal activity or
when standing in formation. Long hair that falls
naturally below the bottom edge of the collar, to include braids, will be neatly and
inconspicuously fastened or pinned, so no free-hanging hair is visible. This includes
styles worn with the physical fitness uniform/improved physical fitness uniform
(PFU/IPFU).

(b) Styles that are lopsided or distinctly unbalanced are prohibited. Ponytails, pigtails,
or braids that are not secured to the head (allowing hair to hang freely), widely
spaced individual hanging locks, and other extreme styles that protrude from the head
are prohibited. Extensions, weaves, wigs, and hairpieces are authorized; however,
these additions must have the same general appearance as the individual’s natural
hair. Additionally, any wigs, extensions, hairpieces, or weaves must comply with the
grooming policies set forth in this paragraph.

(c) Females will ensure that hairstyles do not interfere with proper wear of military
headgear and protective masks or equipment at any time. When headgear is worn,
the hair will not extend below the bottom edge of the front of the headgear, nor will it
extend below the bottom edge of the collar.

(d) Hair-holding devices are authorized only for the purpose of securing the hair.
Soldiers will not place hairholding devices in the hair for decorative purposes. All hair-
holding devices must be plain and of a color as close to the soldier’s hair as is
possible or clear. Authorized devices include, but are not limited to, small, plain
scrunchies (elastic hair bands covered with material), barrettes, combs, pins, clips,
rubber bands, and hair bands. Devices that are conspicuous, excessive, or
decorative are prohibited. Some examples of prohibited devices include, but are not
limited to, large, lacy scrunchies; beads, bows, or claw clips; clips, pins, or barrettes
with butterflies, flowers, sparkles, gems, or scalloped edges; and bows made from
hairpieces.

(e) Soldiers may not wear hairnets unless they are required for health or safety
reasons, or in the performance of duties (such as those of a cook). No other type of
hair covering is authorized in lieu of the hairnet. The commander will provide the
hairnet to the soldier at no cost.
Military-Haircut.com
US Army Hair Cut Standards, Styles, and requirements