Casual Wedding Attire for Men: Dress for the Top of Casual

The Emily Post Institute defines casual as clothing that is "informal and comfortable, yet clean and professional," and tells readers to choose "nicer casual wear" over "the baggier items you wear around the house." Its men's list has five lines. Each one is written for any casual event, from a picnic to a game night, so a wedding guest has to filter it. Here is how each line holds up when the event is a wedding. • "Khakis or good jeans (clean, no holes)." Khakis are the default casual wedding trouser, along with chinos and plain slacks in cotton or a light wool. Jeans are a conditional yes: the section on verdicts below sets out when. • "Cargo or Bermuda shorts—depending on occasion and climate." Emily Post itself qualifies this line. At a wedding, cargo pockets read as weekend wear. A tailored short is the only version any wedding source defends, and only in heat. • "Plain T-shirt (no slogans), polo shirt, turtleneck." The polo survives if it is a fine knit. Vogue's guide warns against anything in sporty "golf shirt" material. A fine turtleneck works in cold months. A plain T-shirt on its own sits at the bottom edge. Vogue's one use for a tee is a crisp white one under a suit, to make the suit read casual. • "Casual button-down shirt and/or sweater." This is the strongest line on the list for a wedding. A pressed button-down with chinos is what Vogue calls a safe choice for men, and a sweater over it covers a cool evening. • "Loafers, sneakers (with or without socks), sandals." Loafers are the safe pick. Sneakers pass if they are clean, all-leather and not athletic. Sandals depend on the setting (a beach, yes; a restaurant, no), and flip-flops are out everywhere. The grid below sorts the list into casual wedding attire for men that works and what to leave at home. The wear side keeps the top half of each line; the avoid side holds the parts of the everyday list that do not carry over to a wedding.

A casual dress code sets a ceiling on how formal you have to be. It does not remove the floor. Emily Post's Wedding Guest Attire page has no "casual" column at all. Its least formal wedding category is informal, and for men that reads: daytime, "Sports jacket or blazer, slacks, tie optional"; evening, "Blazer, grey flannel or slacks, tie optional." That is a full rung above the everyday casual list, and it is the clearest written statement of what a wedding asks of a man even when the couple keep things relaxed. The stylist Vogue quotes on casual weddings, Carrie Goldberg of CLG Creative, sets the floor slightly lower. "Casual wedding attire, or 'come as you are,' is the host's permission to skip formalities—but it's not an invitation to arrive unpolished," she says, and she calls casual "a step down (or two) from cocktail attire" in which "heels and ties are not required." For men specifically: "casual does not require a jacket and tie, but for those who enjoy dressing up, a sports jacket won't have you feeling out of place." Her test for the whole outfit is the clothes you would wear "to a nice dinner party or weekend lunch with friends," not "your favorite athleisure for running errands." The two sources agree on almost everything except the jacket. Emily Post's informal column lists one; Goldberg says it is optional. Read together, they draw a practical line. In daylight, a button-down and chinos with no jacket meets Goldberg's standard. Add a sport coat and you meet Emily Post's as well, and you can always take it off. Wikipedia's article on Western dress codes makes a related point about the word itself: "casual" is usually paired with another word (smart casual, business casual) "in order to indicate higher expectations than none at all." What the floor rules out is the same in every source: athletic wear, anything with a slogan, anything visibly worn or wrinkled, and flip-flops. Goldberg's summary is the one to remember: "Skip anything too rumpled or sporty." Vogue's own closing advice settles the close calls: "when in doubt, choose the slightly more tailored ensemble."

Four questions come up again and again from men reading a casual invitation, and the sources answer them unevenly. The table gives one verdict per item and names the source behind each. Two of them need more than a table row. Jeans. Emily Post puts "good jeans (clean, no holes)" on the everyday casual list but leaves denim out of every wedding column. Vogue's guide tells guests to steer clear of "blue denim (unless it fits the venue)," and Goldberg's own example of fitting the venue is "denim for a ranch wedding." So jeans are right when the invitation, the wedding website or the venue says so: a western theme, a ranch, "boots and jeans welcome." Otherwise, wear chinos. When jeans are invited, wear a dark, even wash with no holes or fading, and dress the top half up with a button-down and, in the evening, a sport coat. Shorts. This is where the experts genuinely disagree. Vogue's guide says that at a summer wedding "a pair of tailored shorts could also be appropriate." Emily Post lists shorts on its everyday list "depending on occasion and climate" but never in a wedding column. In a 2024 Boston Globe report by Alyson Krueger, etiquette expert Jules Martinez Hirst was blunt: "I understand it is going to be hot, but there are things you can wear that aren't shorts and flip-flops." Her exception is a "directive from the top," meaning the couple asks for them. In the same piece, Pittsburgh wedding planner Cassie Horrell described a guest who wore shorts to a cocktail-style vineyard wedding and said, "If you wear shorts, it can also be a sign of disrespect." Wedding stylist Julie Sabatino, on the other hand, told the paper she expects more guests, and couples, to wear shorts in future. The safe reading of all four: shorts only when the couple invites them, or at a hot daytime wedding that is plainly relaxed, and then tailored, never cargo or athletic. Sneakers and the tie are easier. Emily Post lists sneakers on the casual list, and Goldberg's condition is "an all-leather pair that looks clean and fresh rather than anything overly athletic." The tie is optional in Emily Post's informal columns, and in Goldberg's words ties "are not required."

Goldberg's advice to Vogue is that casual "is your invitation to lean into your surroundings." Emily Post makes the same point from the other direction: "The wedding invitation and the time of the wedding will be your best guide to its formality," and "some parts of the country are more conservative than others." The venue does not override the invitation, but within a casual code it decides how far down the list you can go. • Backyard. Goldberg names a "low-key… backyard ceremony" as exactly the event casual dress is for. Chinos and a button-down or fine polo are right; the jacket is optional in daylight. The practical problem is the ground: thin leather soles slip on grass. Loafers with some grip or leather sneakers handle a lawn better than dress shoes. • Barn or ranch. The one setting where denim has a named source behind it (Goldberg's "denim for a ranch wedding"). Dark jeans or chinos, a button-down, and a sport coat or vest for the evening. Boots fit if the couple's theme is western; otherwise loafers. • Brewery or restaurant. Usually indoors and often in the evening, so Emily Post's informal evening column applies: a blazer with slacks, tie optional. A brewery's beer-hall feel does not make it a place for shorts; dress for dinner, as Vogue's lunch-versus-dinner test suggests. • Beach. A separate case with its own sand and heat problems; the men's beach wedding attire guide covers fabrics, shorts and footwear. The table puts the first three side by side.

Time of day moves a casual outfit more than anything else, and for men the piece that moves is the jacket. Emily Post's informal wedding columns differ in one word that matters. By day: "Sports jacket or blazer, slacks, tie optional." In the evening: "Blazer, grey flannel or slacks, tie optional." Its attire guide adds a general rule for events "later than 6 in the evening": "err on the side of formality." Wikipedia's article on Western dress codes uses the same line, before and after 6 p.m., to divide day dress from evening dress. Vogue's guide gives a simpler version of the same test: "Daytime wedding outfits can lean slightly more relaxed than a nighttime affair. When selecting your look, think about how you may dress differently for a nice lunch out versus a dinner." In practice: • Ceremony and reception before about 5 p.m. Chinos, a button-down or fine polo, loafers. No jacket needed. Shorts and leather sandals are possible only at a hot, outdoor and plainly relaxed event. • A daytime ceremony with a reception running into the evening. Dress for the evening part. Wear or carry a sport coat; switch the polo for a button-down. • An evening-only wedding. Slacks rather than chinos if you own them, a button-down, a blazer, loafers or leather shoes. Leave the shorts and sneakers at home whatever the weather. The jacket also solves the most common worry about casual wedding attire for men, which is guessing wrong. With it on, you are dressed for the top of casual and the bottom of dressy casual at once. If everyone else is in shirtsleeves, it comes off and goes on the chair. Without one, there is nothing to add if the room turns out dressier than you expected.

Weather is the main reason men pare down at casual weddings, and the main way it goes wrong. Emily Post's shorts line carries its own weather clause, "depending on occasion and climate," and the Boston Globe report found that heat waves at summer weddings are one reason more guests now reach for shorts. Hirst's answer to that is worth repeating: there are things to wear in the heat "that aren't shorts and flip-flops." Summer. The aim is to keep the outfit's shape (trousers, a collar, a proper shoe) while making each piece lighter. Choose chinos or trousers in thin cotton or linen, a short-sleeved button-down or a fine-knit polo, and unlined loafers. If you want a jacket for the evening, an unstructured cotton or linen one is far cooler than a lined wool blazer. Light colours help in direct sun. Tailored shorts follow the rules in the verdict table: daytime, hot, plainly relaxed, or invited. Spring and autumn. This is where Emily Post's list works best as written: a button-down and a sweater, or a turtleneck under a sport coat, with chinos or slacks and loafers. Mornings and evenings run cool at outdoor venues, so a layer you can remove beats a single heavy piece. Winter. Emily Post's dressy-casual entry specifies a "seasonal" sport coat, and the same idea applies here: heavier cloth, darker colours. Wool slacks or heavier chinos, a button-down with a sweater or a fine turtleneck, a sport coat, and leather shoes or boots rather than sneakers. Canvas and suede both suffer on wet ground. Season never changes the floor: whatever you drop for heat, keep the collar and the proper shoe.

Casual invitations are often worded loosely: "come as you are," "wear whatever," "casual or nice," "backyard casual." Goldberg treats "come as you are" as a synonym for casual, which puts all of these on the same rung. Read them as casual, then check three things before choosing which end of casual to aim for. • The wedding website. Couples often say more there than on the card. The Boston Globe report describes a bride who wanted every man in shorts at her Florida Keys wedding and wrote on the website that "dress shorts" were allowed but "no cargo pockets." That is the "directive from the top" Hirst says makes shorts acceptable. If the site mentions jeans, boots or a theme, follow it. • What the wedding party wears. If the groom and groomsmen are in jeans and boots, dark jeans and a button-down will not look out of place. Vogue's tie-breaker is to "choose the slightly more tailored ensemble," but a full suit and tie can feel stiff at a jeans wedding, so a sport coat over chinos is a sensible middle. • The ceremony. Emily Post asks guests to check whether the ceremony is secular or religious, and whether the religion or culture of the couple calls for head coverings. A house of worship raises the floor: keep a jacket on for the service and avoid shorts, whatever the code says. If you still cannot tell, ask a member of the wedding party, or the couple if you know them well. It is an ordinary question, and it beats guessing. With no answer, dress to the top of the list: chinos, a button-down, loafers and a sport coat you can remove. That outfit fits every reading of casual and is too formal for none of them. For the codes on either side of casual, see the men's guide to every wedding dress code and the dressy casual guide.