One of the key tenets of classic style is to always dress appropriately for the occasion, which is most often stipulated by the required level of formality. But which articles of clothing are appropriate to different levels of formality, and how do they rank in comparison to one another? 

For an event hosted by Queen Elizabeth II, you’d select different items than you would for office work or for a weekend brunch with friends. In this article, we present some general principles to determine the formality of nearly any menswear item and provide you with a list of clues to recognize where they fall on the scale of casual to formal.

The General Rules of Formality

Every item of clothing and every accessory falls somewhere on the continuum of formality, and there are some broader principles you can use to see at a glance where that is.

Dress Codes Formality Scale

Dress Codes Formality Scale

1. Casual vs. Formal Colors

As a rule, brighter colors are more casual than somber ones. A mid-blue suit, for example, is less formal than one in navy blue or charcoal gray.

Bright colors are more casual than darker ones.

A useful technique to sort this out is to think of colors one could typically wear in the summer as casual, no matter what the season–beige, white, or light blue, for example. Although not really a bright color, brown is also more casual than navy or grey. A lot of this is owed to the long-established British distinction between city and country wear. Browns were not supposed to be worn in town, which immediately associates the color with a more casual rural setting than the charcoal grey or navy one would wear when doing business in London.

Colors formality scale

Colors formality scale

2. Casual vs. Formal Texture

The smoother and often the shinier the fabric, the more formal it generally is. A textured basketweave fabric would be more likely to appear on a sports coat than a classic suit, and corduroy would make for casual trousers, not dress pants. As a general guideline, if there’s strong visual evidence of the weave or texture, it’s more casual.

The left fabric shows a formal Super 150s worsted wool, whereas the right shows a prominent weave on a casual sports coat.

The left fabric shows a formal Super 150s worsted wool, whereas the right shows a prominent weave on a casual sports coat.

Ties that are made of rough wool or slubbed shantung are casual, while smoothly printed silks are business ties. On the other hand, you wouldn’t wear a shiny satin silk tie to work as its shine makes it too formal for that setting; satins should be reserved for evening events. Shine can be thought of as a variant on texture, as it is usually associated with smoothness. Shiny silk appears on the lapels of tuxedo jackets and on cummerbunds. Velvet, which has a distinctive sheen, is used for dinner jackets. Patent leather is used for opera pumps as part of formal evening wear.

Black Classic Butterfly bow tie in silk satin by Fort Belvedere

This Black Classic Butterfly bow tie in silk satin by Fort Belvedere complements the satin lapels of the jacket nicely

3. Patterns and Formality

Similarly to texture, patterns also play a role in assessing formality. Articles of clothing with patterns tend to be less formal than those that are plain. Indeed, in British tailoring, many of the most popular and classic menswear patterns, particularly any plaid–from houndstooth to glen check, to Prince of Wales–were originally reserved for less formal country wear. A possible exception could be ties and pocket squares, as all sorts of patterns are acceptable on silk business ties (the printed silk it’s made of supersedes any informality of pattern).

Houndstooth, Windowpane and Double breasted jacket with hats

Houndstooth, Windowpane, and Double-breasted jacket with hats

Even formal morning wear allows ties with patterns on them, whether geometric or stripes; however, a solid color tie would still be considered more conservative. Among patterns, those that are smaller and therefore less forceful are more formal than those that are large or loud. A mistake commonly made by beginners looking to “dress up” is buying designer or fashion items that usually have a lot of ornamentation, for instance, a gold and black jacket, when the exact opposite–a lack of pattern–would actually be more refined.

 

4. Structure and Formality

Another rule in classic menswear is that the more something is structured the more formal it is. In the realm of suit jackets and sports coats, those with canvas, lining, and padding have greater formality than those that are unlined or partially lined with unpadded shoulders.Sven Raphael Schneider wearing a rust-colored, single-breasted herringbone suit with a contrasting vest and tan full brogue boots

Sven Raphael Schneider wearing a rust-colored, single-breasted herringbone suit with a contrasting vest; the suit’s structure formalizes it (in contrast to the more casual color)

Ties that contain an interlining are likewise more formal than those that are hand-rolled, unlined, and untipped because the former are more constructed. Even shirts fit under this umbrella. If you have a hard collar, the shirt will be more formal than one with a soft or unfused version.

 
Italian Tie Interlining in wool and cotton by Fort Belvedere

This wool-and-linen tie from Fort Belvedere contains an interlining

5. Purpose and Formality

Knowing the origins and historic uses of the article of clothing, which you can learn from The Gentleman’s Gazette, can also be a way of judging it. If you have something that was originally intended to be worn in the country, for sport, or for utilitarian purposes, like a flat cap or a polo shirt, it would more casual than something intended as business attire.

The flat cap has its origins in British rural clothing.

The flat cap has its origins in British rural clothing.

Now, having provided the clues that enable you to assess the formality of clothing in general, we can turn our attention to the earmarks of specific wardrobe items.

Jackets

1. Structure

Continuing the discussion above, when dealing with suit jackets or sports coats, quite simply, more structure means a greater degree of formality. It is therefore not surprising that men who are accustomed to wearing highly structured suits every day for work turn to unstructured jackets in the Neapolitan style when they’re not on the job precisely because they are more relaxed.

Unpadded "natural shoulder."

Unpadded “natural shoulder.”

This is owed to the tailoring of Naples, which tends toward less structure; their jackets are lightly lined and have a “natural shoulder” free of padding. The absence of structure has led them to be embraced by those who want to dress for fun and style rather than for business pursuits.

2. Fabric

The broader rules about materials and patterns also apply, with coarse or patterned jackets tending toward the casual end of the spectrum contrasted with smooth, solid ones. We can easily rank the most common materials used for tailored jackets in order of casualness based on their general “roughness”: linen, then cotton, then wool–with raw or rough wools (tweed and flannel) being a rung below worsted, and, lastly, cashmere.

Summer linens rank as the most casual of fabrics for their "rough" texture and their tendency to wrinkle easily.

Summer linens rank as the most casual of fabrics for their “rough” texture and their tendency to wrinkle easily.

Wrinkling, common with linen (and cotton) can be thought of as a kind of texture, something that disrupts a smooth appearance, whereas wools do not wrinkle as easily, especially worsted, which elevates their formality. Cashmere has a smooth hand and a distinctive sheen that puts it at the high end. Pure silk could be thought of as the most formal of jacket materials, given its smoothness and shine, but these are nearly impossible to find and impractical to maintain because of the delicacy of silk fibers.

3. Pockets

Unique among menswear items, pocket style on a jacket serves as a strong indicator of how casual or formal it is. Patch pockets, which are formed from material sewn onto the surface of the jacket’s lower front quarters, are the most casual; they are common on sports coats and casual suits. If there is a patch breast pocket as well, the jacket becomes even more relaxed. 

Jacket pockets formality scale

Jacket pockets formality scale

Next up are flap pockets. Usually, with flap pockets, no additional material is used on the surface of the jacket; the pockets are hidden beneath the surface of the jacket with only the flap visible. Flap pockets were originally associated with country wear in British tailoring but are now most common on business suits, though they may also feature in sports coats. 

A Neapolitan barchetta pocket and a patch breast pocket.

A Neapolitan barchetta pocket and a patch breast pocket.

Lastly, we have jetted pockets, which are like flap pockets in construction but with no flap; the pocket is simply a slit with edge stitching. The result is a very clean, minimalist look, which you’ll find on formal wear: dinner jackets, tuxedos and morning wear.

4. Lapels

Lastly, lapels are an easy way to assess a jacket’s formality.

Jacket lapels formality scale

Jacket lapels formality scale

In a nutshell, a notched lapel is less formal than a peaked lapel, which is the most formal kind, appearing on power suits and formal wear. On a tuxedo or dinner jacket, you may also see a shawl collar; this is limited to formal jackets, so it remains more elevated than a notch lapel but is still more relaxed than a peak lapel. Thus, for example, a white dinner jacket that would be worn on a summer cruise should technically have a shawl collar given the relatively relaxed nature of the garment compared to a black tuxedo.

Off-white Dinner jacket with Fort Belvedere red spray rose boutonniere and Black Bow Tie in Silk Barathea and Burgundy glen plaid silk pocket square

Off-white Dinner jacket with Fort Belvedere red spray rose boutonniere and Black Bow Tie in Silk Barathea, paired with a Burgundy glen plaid silk pocket square

Pants

As a visual cue to assess formality, if a pair of pants has a sharp crease down the center of the legs, it’s more formal than one with a smooth front. The former are “dress pants,” while the latter would also include chinos and jeans. The “crease” division not coincidentally conforms to the rule of materials as well because dress pants are mostly made of wool while chinos are made from cotton or linen. Frankly, wool holds a crease much better than cotton or linen.

Dress pants (left) with a distinct crease; chinos (right) with more evident seam details, no pleat, and a metallic button closure.

More formal dress pants (left) with a distinct crease; less formal chinos (right) with more evident seam details, no pleat, and a metallic button closure.

Within the category of chinos itself, there can be a range of formality as well: more casual chinos display a visible flat seam on the inner legs whereas so-called “dress chinos” are cleaner, with seams that are minimized. The presence of ornamental details on pockets, like metal rivets or decorative stitching, such as what you’d see on a pair of jeans, are also emblems of casual style.

Shirts

1. Fabric

What looks at first glance like the same plain white dress shirt can offer varying levels of formality depending on factors like the weave, the cuffs, and the collar. With its relative thickness, somewhat rough texture, and patch pocket, the Oxford cloth typical of the classic OCBD shirt is considered among the more casual dress shirting fabrics. For this reason, they add a casual touch to tailoring and may be more associated with sports coats than business suits, though the rule is flexible.

Paul Newman wears a classic oxford collar button down OCBD

Paul Newman wears a classic oxford collar button down OCBD

Common pinpoint cotton or broadcloth represent a middle ground in business shirts: they can be worn with essentially anything as well but are more formal than OCBDs. Even more elevated are weaves that continue the association of shininess and formality, like Royal Oxford and twills; these are best worn with suits or formal wear. Of course, following the established general principles, patterned shirts are more casual than solids, and the bigger or more visible the pattern (think wide butcher stripes or plaids) the more casual the shirt will be.

Striped Siniscalchi Shirt

Multicolor Striped Siniscalchi Shirt

2. Collars

Dress shirt collars come in a variety of forms, and, once more, the button-down collar is the most casual, perhaps because of its association with the OCBD, or with the sport of polo, or because it shows visible buttons.

Collars formality scale

Collars formality scale

After this, the point, semi-spread, and spread are about equal in terms of formality, and all are appropriate for business settings. They can’t really be ordered in terms of formality, though arguably, because variants of the spread collar are de rigueur with tuxedos, it may be somewhat more elevated. Collars with vintage appeal, such as a tab collar, hearken back to a more formal time and are consequently seen as more formal especially when worn with a tie pin. The wing collar may be the most formal of all, as it is only worn with formal wear and has associations with vintage style.

Tab-collar shirt

A tab collar shirt from Proper Cloth showing the way the tabs fasten.

3. Cuffs

This is an easy one since, unlike collars, there are only a few kinds of shirt cuffs. Basically, a standard button (or “barrel”) cuff is least formal, followed by French or double cuffs that require cufflinks, appropriate for more formal business shirts, black tie, and morning dress. Single cuffs with links, the most formal style, are reserved for white tie.

Single Cuff with cufflinks is the only proper shirt cuff option for white tie

Single Cuff with cufflinks is the only proper shirt cuff option for white tie

Ties

Where wool reigns supreme as the formal fabric for tailored jackets and dress pants, silk is the queen of tie fabrics. However, not all silks are equally formal. Ties made of raw (shantung) or wild (tussah) silk that shows a lot of texture or slubbiness and those that are knitted (as opposed to woven) silk are perfect to wear with casual tailoring. An interesting exception is grenadine, which is a popular choice for business wear even though the weave is quite an obvious feature. Perhaps this is owed to its shininess. 

micropattern ties by Fort Belvedere

Micropattern ties by Fort Belvedere

Ties made of materials other than silk, such as linen, cotton, wool, and even cashmere, remain less formal, either because they are not as smooth or shiny. Interestingly, pattern matters less with ties in determining formality–a printed silk tie with stripes or a repeating geometric pattern is only barely less formal than one in a solid color.

 

Shoes

Shoes Formality Scale

Shoes Formality Scale

In order from least formal to most formal dress shoes (excluding boots), we have loafers, derbies, monk straps, and oxfords. The very name “loafer” implies casual relaxation as does its slipper-like form. Derby shoes were originally country wear though they are at home with sport coats and even suits these days; still their association with casual settings remains. Monk straps are sort of at the same formality levels as derbies, but they are perhaps more frequently worn with suits than a derby would be.

Brown Lizard Tassel Loafers with dark blue and royal blue shadow stripe socks and grey flannel

Brown Lizard Tassel Loafers with dark blue and royal blue shadow stripe socks from Fort Belvedere

Lastly, we have oxfords, which are the most formal of shoes, equally useful for suits and formal wear. Color also matters, with black shoes considered more elevated than brown, again based on the old British “no brown in town” rule. Indeed, even now many men will only wear black shoes with navy or gray business suits though brown is worn for everything in Italy and has become more acceptable with suits in most settings. The principles of shine and texture also apply, with suede and nubuck shoes being more laid back than polished calf leather. Beyond these principles, two factors–ornamentation and structure–are also influential when determining the formality of shoes.

Allen Edmonds Park Avenue Oxfords

Allen Edmonds Park Avenue Oxfords

1. Ornamentation

With shoes, less is more (formal, that is), in terms of broguing and other ornamental details like wingtips. Case in point: the black patent oxfords worn with evening attire are actually quite plain except for their high shine, and for everyday business wear, black oxfords with a plain cap toe are appropriate. In fact, these black oxfords are also the shoe to wear with a formal morning suit. However, those who are new to classic style may be drawn to the intricate perforations that form the broguing on a shoe. They assume because broguing is so ornate and requires extra leatherwork that more of it equals a fancier shoe. On the contrary, simple is more elegant, something we can remember when we keep in mind that brogue perforations were originally designed for drainage on country shoes.

A cognac wingtip derby shoe with broguing versus a simple black captoe oxford, both from Acemarks

A cognac wingtip derby shoe with broguing versus a simple black cap-toe oxford, both from Ace Marks

2. Structure

Although all loafers can be called mocassini in Italian, even these can be sub-divided in terms of how much structure they have. A soft loafer is generally made of suede and is quite slipper-like, looking more like what one would consider a true moccasin. It’s an excellent shoe for summer weather as it is very lightweight and comfortable, which also makes it casual. Structured loafers can come in either suede or calf leather but are firmer and by virtue of this, more formal in appearance.

Soft, less structured loafer (top) and more structured loafer (bottom)

Soft, less structured loafer (top) and more structured loafer (bottom)

Conclusion

Knowing whether an item from your wardrobe is casual or formal, and to exactly what degree, can be important. It can help you decide whether what you are wearing is formal enough for an occasion or whether it’s too formal for everyday situations. It can also help you coordinate and pair aspects of what you wear because you’ll know, for example, that oxford shoes don’t usually work with jeans unless you’re trying to make a statement with the incongruity. Fortunately, there are certain qualities and earmarks that help you sort out where items reside on the scale of formality and thus which ones go together.

Do you have a different system for distinguishing smart casual from formal clothes? Are there other articles of clothing that can be sorted by levels of formality? Let us know in the comments below.