Prom is the most formal night on the school calendar, and long is the usual read, though plenty of schools are relaxed about it now. What matters more is a dress you can stand and dance in for five hours. Brands we carry include Free People, Motel Rocks and Lucy In The Sky, alongside our own Miss Behavin' Label. Sizes vary by label.
Written by Sophie · Updated August 2026
▾ Long or short for prom?
Long is the tradition and still the majority, but short is no longer unusual and at plenty of schools it is now roughly even. The honest answer is that it depends on your school rather than on any rule, so look at last year's photos before you decide anything. Long reads more formal and photographs beautifully on a staircase. Short is easier to dance in, easier to sit in at dinner, and far easier to wear again. If your school publishes a dress code with a length requirement, that settles it and nothing else matters.
▾ How far ahead should you buy a prom dress?
Earlier than feels necessary, and the reason is not the dress. It is alterations. A formal dress almost always needs a hem or a takein, a tailor needs time in the busy season, and the week before prom is when everyone discovers this at once. Buying two or three months out gives you room to try it, decide it is not right, and swap it. It also means you are choosing from a full range rather than what is left. The one real risk of buying very early is a growth spurt or a change of mind, and both are easier to fix than a rushed alteration.
▾ What actually works for a whole night?
Something that stays where you put it. Prom is five or six hours of standing, dinner, photographs and dancing, and the dresses people regret are the ones that need managing all evening. A strapless has to genuinely fit or you will spend the night adjusting it. A very fitted skirt makes sitting down at dinner awkward. A long hem needs a heel height you have already tested, or you will be treading on it by the second hour. Straps, a defined waist and a bit of movement in the skirt solve most of it.
▾ What shoes should you wear to prom?
A block heel, and bring a flat for later. Everyone says they will keep the heels on and almost nobody does, which is why the smart move is planning for it rather than ending the night barefoot on a gym floor. A block heel gives height without the balance problem, and under a long dress nobody can see it anyway. Wear them in at home for a few days first. Shoes live in Shoes.
▾ Three prom looks we would actually wear
The classic one. A long dress in a deep or jewel tone, a block heel, one piece of jewelry. Photographs the way you want prom to look, and reads formal without effort.
The short one. A fitted or A-line mini in satin or sequin, a heel or a heeled boot. Easier to dance in, and the only one of the three you will genuinely wear again.
The one that is not a dress. A long skirt with a corset or satin top, a heel, one good bag. Formal enough for the room and it separates into two outfits afterwards.
▾ How is prom different from homecoming and winter formal?
Prom is the formal one, and the other two are not close. Homecoming is early autumn, short, and casual by comparison. Winter formal sits in between: dressier than hoco, still usually short, and open to every grade. Prom is spring, usually long, and often limited to the upper years, so the room is smaller and the dress code is taken more seriously. In practice that means a hoco or winter formal dress does not stretch to prom, but a prom dress is far too much for either of the others. Our hoco and homecoming dresses and Winter Formal Dresses cover the other two.
▾ What do you wear if you do not want a gown?
A short formal dress, or a two piece. Neither is a compromise and both photograph well, and at most schools nobody will think twice about it. The two piece in particular reads deliberate rather than underdressed, and it is the only prom outfit on this page you will wear again in full. Keep the fabric formal, satin, sequin or something with a sheen, and the shape does the rest. What does not work is a daytime dress with a heel, which reads as a dinner outfit rather than prom.
▾ What to know before you order
Order with enough time to alter it, which is the whole game with formal dresses. Sizes vary by label, so check the options on each product page, and formal shapes tend to run closer to the body than a daytime cut in the same size. Decide your shoe before the hem is altered, because the two are one decision. If you are between sizes, message us and we will pull it off the rack and tell you what we see.
▾ Shop the rest of the edit
Prom pulls from Dresses, Skirts, Corset Tops and Shoes. For the other school dances, see Winter Formal Dresses and Hoco + Homecoming Dresses. For the daytime end of the school year, graduation outfit ideas covers it. Everything grouped by where you are going lives on Shop by Occasion. The Miss Behavin' Label is our own line and the one nobody else carries.