What Is Cocktail Attire?

What does cocktail attire mean?

Cocktail attire is defined by its neighbours more than by any rulebook. The Emily Post Institute's attire guide has no cocktail section. Instead, Lizzie Post told the Associated Press in 2022 that 'cocktail attire is a subset' of semiformal, the code the guide does define: 'more formal than what you would wear to an office, but slightly less formal than what you would wear to a formal event.' Debrett's describes it from above. Hosts write 'cocktail attire', 'smart frocks' or 'party dress' when they want guests to dress up but 'are reluctant to impose the rigid guidelines' of black tie, and men 'can discard dinner jackets and bow ties if they choose.' The Irish Times put it plainly in 2016: 'A notch below black tie on the formality totem pole.' The dress came before the phrase. A V&A gallery label dates cocktail dresses to the 1920s, worn at early-evening '6 to 8' gatherings where guests stood and mingled, and the V&A credits Christian Dior with first using the term in the 1940s. In his Little Dictionary of Fashion (1954), Dior called them 'elaborate and dressy afternoon frocks', preferably in black taffeta, satin, chiffon and wool. Those dresses, the label says, became the little black dress.

Where cocktail attire sits on the ladder

Cocktail attire for women

1. 
   01

   Black knee-length cocktail dress

   Dior's 1954 Little Dictionary of Fashion wanted cocktail dresses preferably in black taffeta, satin, chiffon or wool, and the V&A says they became the little black dress. A knee-length cut also climbs a rung: Debrett's (2023) calls it the most popular choice even at British black tie.

2. 
   02

   Emerald silk midi dress

   A midi hem sits inside The Irish Times' 2016 'short or midi' range, and Zola names jewel tones for fall and winter events. Lightweight silk keeps a longer dress on the cocktail side, where satin or velvet would lean black tie.

3. 
   03

   Black wide-leg jumpsuit

   Named beside the little black dress in The Irish Times' 2016 cocktail advice, and Zola's guide calls dressy jumpsuits and pantsuits generally acceptable. A wide leg and a defined waist make it read evening rather than office.

4. 
   04

   Long pleated skirt in black, worn with a silk top

   Emily Post lists a 'Long dressy skirt and top' under both semi-formal and festive, so this is the separates route for a party where you'd rather not wear a dress. Pleats move when you stand and mingle, which is what a cocktail party asks of you.

5. 
   05

   Gold metallic clutch

   Zola: clutches and dainty crossbody bags 'always feel more wedding-ready than an oversize purse or satchel'. A small bag also suits the standing party the V&A says the cocktail dress was made for, where you hold a glass in the other hand.

6. 
   06

   Black block-heel pumps

   Zola ranks heels and cap-toe shoes as more formal than flats or loafers, and suggests block heels or wedges for summer events on grass. One pair covers a December restaurant and a July garden.

7. 
   07

   Ivory faux-fur shawl

   Zola's answer for a winter wedding is 'a sleek jacket or faux-fur shawl' over the dress. In a New York December, when the average high is only 7°C/45°F (NOAA), you need something over bare shoulders between the car and the door.

Cocktail attire for men

1. 01

   Dark suit

   Emily Post's semiformal evening column asks men for a 'Dark suit', and The Irish Times called for 'a classic suit with a white shirt and smart shoes' in 2016. Navy or charcoal; this is what separates cocktail from the tuxedo rungs above.

2. 02

   White dress shirt

   The Irish Times' 2016 cocktail advice names a white shirt. It takes a printed tie and a pocket square, the two places it suggests adding flair.

3. 03

   A tie, worn or pocketed

   Zola: 'veer on the side of caution or bring one along, just in case.' Debrett's says cocktail attire releases men from the bow tie, not necessarily from a tie.

4. 04

   Velvet or Nehru jacket

   Debrett's lists 'smart lounge suits, velvet jackets, Nehru jackets' for men under cocktail attire. In December, a bottle-green or burgundy velvet jacket over dark trousers also answers a festive card, where Emily Post asks for a seasonal sport coat.

Cocktail attire in winter and summer

Winter. New York's December averages 7°C/45°F by day and 1°C/34°F at night (NOAA), so plan the coat with the dress. Zola's Maggy Lehmicke says a long dress at a winter cocktail wedding is 'likely expected' and suggests jewel tones; Zola's cocktail guide adds a long-sleeved fitted shift and a sleek jacket or faux-fur shawl. A festive card asks for the same cocktail dress or dressy separates in holiday colours, and a seasonal sport coat and festive tie for men.

Summer. New York's July averages 29°C/84°F by day and 21°C/70°F at night (NOAA). Zola points you to lightweight silk, cotton and linen blends for a cocktail maxi, terracotta or mustard tones, and wedges, block heels or polished flats rather than stilettos on sand or grass. Satin, velvet, crepe and organza lean black tie, so they overshoot a garden party.

Reading the invitation

• “Cocktail attire” — A knee-to-midi party dress, a dressy jumpsuit or a suit. Debrett's says the code lets men drop the dinner jacket and bow tie.
• “Smart frocks or party dress” — Debrett's lists both as other names for cocktail attire: women choose whatever dress or trouser combination makes them look 'chic and glamorous'.
• “Festive attire” — Emily Post: 'essentially cocktail party attire with a seasonal and festive holiday touch.' Peggy Post admitted in 2002, 'No one really knows what that means', so let the venue decide.
• “Semi-formal” — On wedding cards, Zola says cocktail attire is 'sometimes also referred to as semi-formal'. Read them as one code and let the hour settle the details.

A suggested look — emerald sleeveless v-neck silk midi dress, black block-heel pumps, small gold stud earrings.

What to avoid

• a formal gown at a party in someone's home — Peggy Post (2002) said a hotel ballroom calls for a fancy gown, while a shorter cocktail dress or a suit suits a house party
• stilettos at a garden, barn or beach party — Zola warns they 'don't mix well with sand or lawns'; wedges or block heels hold
• a floor-length dress in satin, velvet, crepe or organza — Zola says those fabrics lean black tie unless you dress them down
• an oversize tote or satchel — Zola says clutches and dainty crossbody bags 'always feel more wedding-ready than an oversize purse or satchel'
• your work outfit unchanged — the semi-formal family that cocktail belongs to is, in Emily Post's words, 'more formal than what you would wear to an office'