Military Ball Dresses: Gowns, Rules and Etiquette

A military ball is usually a formal evening, and for a guest that means a floor-length gown unless the invitation says a shorter dress is fine. Before you buy anything, ask your service member what the invitation says, because the unit sets the dress code, not the calendar or the venue.

Most balls run long: a receiving line, a formal ceremony, dinner, toasts, then dancing. Pick a gown you can stand in, sit in and dance in, keep it modest enough for a ceremony with senior officers in the room, and plan something warm for the walk in.

What the military ball dress code usually means

The military ball dress code works in two halves. Service members wear a dress uniform (which one depends on the branch and the invitation), and guests dress to match that level. For civilians that usually reads as black tie or formal: a floor-length gown for women, a tuxedo or dark suit for men.

The exact wording comes from the unit hosting the ball, so it can differ from one invitation to the next. Some say "formal", some say "black tie", and a few spell out that a cocktail dress is welcome. If the invitation says black tie, our guide to black tie attire covers what that code asks of a guest in more detail.

The biggest season is late fall and winter. The Marine Corps birthday is November 10 (the Corps dates itself to that day in 1775), and Marines mark it every year with a birthday ball held around that date. Army, Navy, Air Force and Coast Guard units hold balls on their own schedules through the year.

Floor length, and when shorter is OK

Floor length is the safe default. A gown that reaches the floor (or comes within an inch or so of it in your heels) never looks underdressed next to dress uniforms, and it photographs the way people expect a ball to look.

A shorter dress can work when the invitation allows it. Some unit balls are more relaxed than others, and an invitation that says "formal or cocktail attire" gives you room for a dressy midi or knee-length dress. That's common practice rather than a rule, and it varies by unit and branch, so ask. If nobody can tell you, go long.

You'll often hear that officers' balls lean more formal and that balls for younger enlisted members are more relaxed about hem length. Sometimes that's true and sometimes it isn't; a large birthday ball for a whole battalion can be as formal as any officers' dinner. Treat the invitation as the only rule that counts.

If you do go shorter, keep everything else formal: a rich fabric like satin, velvet or crepe, a midi length rather than a mini, polished heels and a small evening bag. A cocktail dress that would suit a nightclub will look out of place next to dress uniforms even at a relaxed ball.

Military ball gowns by style

Military ball gowns don't have to follow a single shape. What matters is length, a neckline you're comfortable in for a ceremony, and a skirt that lets you walk and dance. Three styles cover most of what you'll see.

Flowing chiffon gowns

Chiffon is light and moves well, which helps on a dance floor that stays busy until late. A lined chiffon gown with an A-line or empire waist suits most figures and packs reasonably well if you're traveling to the ball. Check that the listing mentions a lining, because unlined chiffon is sheer under bright lights.

Satin A-line gowns

Satin looks the most traditionally formal and holds its shape in photos. An A-line skirt gives you room to walk without the cling of a fitted mermaid shape. A slit is fine for movement, but one that runs up to the hip can feel like too much at a formal ceremony; a slit to the knee is the easier choice.

Long-sleeve velvet for winter balls

Velvet is warm, rich-looking and right for a January ball, and long sleeves solve the cold-venue problem before it starts. Look for a little stretch in the fabric so you can raise your arms on the dance floor. For more velvet styles, see these velvet gowns; the same rules on length and sleeves apply.

What to wear to a military ball as a guest: etiquette

What to wear to a military ball comes down to looking formal and respectful in a room built around tradition. A few habits help:

• Keep the neckline modest. There's usually a receiving line and a formal ceremony, and plenty of photos with senior officers in them.
• Skip camouflage prints, even as a joke. Leave the uniforms to the people who wear them.
• A strapless gown is usually fine. A wrap helps during the ceremony if the room is cold or the event feels more conservative.
• Arrive on time for the ceremony and the toasts. Guests are expected to stand for some parts, so shoes matter.
• Avoid anything you'd have to adjust all night: a slipping strap or a very high slit gets tiring by the third hour.

Black gowns are completely fine, and so are jewel tones like navy, emerald and deep red. Some units have traditions about colors, so if you want to wear something bright, ask your date first. For other formal events on the calendar, browse our occasion dresses.

Shoes, wraps and a long night

Choose heels you can dance in. A block heel or a lower strappy heel with an ankle strap stays on better than a stiletto pump, and nobody sees your shoes under a floor-length gown anyway. Break them in at home before the night.

For the walk from the car or the hotel, a faux-fur stole or a velvet wrap keeps your shoulders warm and still looks formal in photos; see our roundup of evening wraps for styles and fabrics. Leave your heavy coat at coat check if there is one.

A small clutch with a chain strap holds your phone, ID, lipstick and a few blister pads, and the strap frees your hands for the receiving line. For a formal evening with a different crowd, the advice on what to wear to a gala overlaps a lot with this one.

Questions to ask your date before you buy

Your date knows the unit and has probably seen the invitation. Five questions save you a return:

1. What does the invitation say about attire: formal, black tie, or formal or cocktail?
2. Where is the ball, and how far is the walk from parking to the door?
3. Does the unit have colors or traditions guests usually nod to? This is optional, but some people like to know.
4. Is there a receiving line, and will you be in it?
5. How late does it run? A ball that ends after midnight decides your shoes for you.