Sailor collar

Also called: middy collar, flap collar, square collar, sailor neckline

A large square collar that lies flat over the back and chest, taken from enlisted naval dress and later used on children’s sailor suits, middy blouses, and school uniforms.

How to recognize it

Look for a broad, square flap that covers the upper back and folds forward over the shoulders onto the chest, usually with a V or shallow opening at the front. Edges are often bound with braid or stripes. A knotted necktie, dickey, or striped underlayer may fill the V.

The collar is part of the garment or applied as a large overlay. It is not a small rounded Peter Pan leaf and not an upright mandarin band.

Origin and history

The sailor collar comes from enlisted naval uniform, especially the British Royal Navy’s square flap collar on what became Number One or “naval rig” dress. British ratings’ uniform was standardized in 1857, developing from earlier working rig. Versions of the same square collar spread through many navies. Folklore around touching a sailor’s collar as lucky attached itself to the flap.

Civilian fashion followed royal children. In 1846, four-year-old Albert Edward, Prince of Wales (later Edward VII), was dressed in a scaled-down Royal Yacht rating’s suit. Franz Xaver Winterhalter’s portrait and popular prints spread the look. By the 1870s, sailor suits were fashionable dress for boys and girls in Britain, continental Europe, and the United States. Museum collections show the collar on children’s clothing and, later, on women’s sports and gym costume.

In early-twentieth-century America the woman’s sailor dress or middy blouse was often called a Peter Thomson dress after a naval tailor with shops in New York and Philadelphia. The Vienna Boys’ Choir still uses sailor suits on tour. From the twentieth century, many schools in Japan (sailor fuku), the Philippines, Korea, Vietnam, and Thailand adopted sailor collars for girls’ uniforms, so strongly in Japan that the silhouette became a marker of girlhood in film, manga, and pop performance.

Cartoon and comic figures such as Popeye and Donald Duck locked the look into popular visual culture. Navies still wear ceremonial versions of the square collar today.

Where it is used

Primary uses are naval and sea-service dress, children’s party and portrait clothing, school uniforms in several Asian countries, choir dress, nautical sportswear, and fashion blouses that quote the middy.

It appears at christenings, school days, stage costume, and summer “navy” collections. It is rare as corporate officewear unless the workplace is a uniformed service.

What is worn now

Editorial styling suggestions from MsDressly—not strict rules.

What is worn now: ceremonial navy ratings’ dress; children’s sailor outfits; Japanese and other East and Southeast Asian school uniforms; fashion middy tops with striped binding; and nautical-themed dresses with a square back flap.

On adult civilian clothes, keep the flap in proportion to the shoulders and use braid sparingly unless the garment is meant to look like uniform. A striped Breton shirt is a related navy reference but is not a sailor collar. Fill the front V with a knot, dickey, or clean skin rather than a conventional shirt collar.

How it differs

A Peter Pan collar is small, rounded, and close to the neck. A sailor collar is a large square plane over back and chest.

A mandarin collar stands up and has no flap. A shawl collar rolls in a continuous curve onto the lapel; a sailor collar is geometric and usually braided.

“Middy” refers to the blouse that carries this collar, named after midshipmen.

Expression and impression

The square collar reads as naval, youthful, or uniformed. On children it is festive and traditional. On school uniforms it signals group belonging. In fashion it can look sporty, retro, or costume-like if the braid is heavy.

Common questions

Is a sailor collar the same as a Peter Pan collar? No. One is a large square flap from naval dress; the other is a small rounded flat collar named from a 1905 stage costume.

Why do Japanese school uniforms use it? Late-nineteenth- and twentieth-century school dress borrowed Western naval and children’s sailor suits; the style became standard sailor fuku in many girls’ schools.

Do sailors still wear it? Yes, mainly as ceremonial or dress uniform rather than daily working kit, with national variations.

Sources

September 18, 2026