The History of Flat Caps - The Classic Lid - Ireland and Beyond

The flat cap, as it is commonly recognized today, is a soft cap with a rounded, forward-slanting profile and a short brim at the front. It can be constructed either as a simple one-piece crown or from multiple stitched panels, with the latter often associated with the fuller “newsboy” variation . 

Importantly, these variations are not separate categories but are treated as part of the same broader family of flat caps, reflecting differences in construction rather than entirely distinct styles .

There are a few myths about flat caps. The most famous is the idea that Irish caps in particular were the result of an Elizabethan law.

The Statute of Apparel or Act of 1571, was a piece of legislation passed by Queen Elizabeth I's Parliament intended to support the English wool industry. Under the law, all males over the age of six (excluding nobles and persons of high status of course) were required to wear a knitted woollen cap on Sundays and holidays or pay a fine of three farthings a day. The law was in effect for 26 years before being repealed in 1597. 

This law is considered by some to be a reason why the "flat cap" became standard, traditional headwear for working-class Irish and English men.

But there’s no conclusive evidence.

In the later 16th century, English authorities in Ireland, such as Lord Deputy John Perrot, did attempt to suppress traditional Irish dress, including the léine (calf- to ankle-length garment of white or yellow linen) and the mantle. They encouraged or required the adoption of “civil” (English-style) garments as part of broader efforts to anglicize Irish society. However, enforcement was weak from what we know. 

Promoters of Irish identity and fans of the Irish underdog story will often conflate these two historical facts. We can’t fault them for their passion.

But here’s the thing. Men have always worn hats. Hats protect you from the sun, wind and rain. Unlike Scottish Highland bonnets, the styles of hats we see represented in Irish art across the centuries are generally in keeping with those across Europe from century to century. There is no distinctly Irish cap (or English working man’s hat) that seems to span the centuries and be a direct forerunner of the flat cap. 

Rather, visual evidence suggests that while styles moved with fashion to a degree, wider brimmed hats were usually preferred by those working the land. Sailors and fishermen often preferred bonnets that were more wind-proof.

Note that in the early 19th century Irish men did adopt, retain and then customize the early “Wellington" top hat of the late 18th century eventually creating the famous Irish “bucket hat.”

What did change in the 19th century was industrialization. Flat caps as we think of them were very likely an outgrowth of the Industrial revolution combined with military innovations…

The flat cap was a hybrid. It was modeled on not one  but several different types of hat that came into use in the 19th century. While a precise point at which the hat really came into uits own as a distinct style, we do know why it evolved.   

Safety and efficiency:
Closer-fitting hats with short but effective bills were far more efficient and safer while working in industrial settings. Imagine trying to work in a coal mine or at a giant steam hammer wearing a tricorn hat or bucket hat. It would be awkward and inconvenient, even potentially dangerous as it could block too much of your upper view, get caught on things and knocked off.

Cheap practicality:
As for the military, smaller profile caps offered good enough protection while also being less likely to get in the way or block vision while marching in tight formation. The need for large showy headcovers in order to identify troops in the field (or to intimidate the enemy) was slowly fading. Forage caps, keppies, etc were cheaper and more efficient.

And Then There's Cricket

Here's the most shocking, most likely, and amusing origin of the flat cap: It may have been a baseball cap.

That’s right folks. Our beloved flat caps, driving caps, newsboy caps, peaky blinders, scally caps…ALL of these styles have echoes from the ancient history of Cricket and Baseball. 

Cricket was originally invented in the south of England. By the 1860s it had grown to be the second most popular sport in the UK - second only to boxing. In that decade we also first see more distinct equipment and uniforms for the game, including hats.  Baseball, the American offshoot of the game, copied almost all of its aesthetics before developing its own. 

The cricket cap essentially includes all of the technical advantages we have already discussed, in addition to being great at keeping sweat out of the eyes.

Flat caps are a perfect example of form following function; comfortable, practical and accessible. The soft construction, low profile, and use of durable materials made it suitable for work, play, and thus everyday use. it never completely replaced other hats as a working class go-to, but by the early-20th-century, it seemed like everyone owned one. 

By the late 19th and early 20th centuries, the flat cap had become strongly associated with working-class men. At the same time, it was also adopted by wealthier individuals, particularly for country pursuits such as hunting and other outdoor activities. This dual usage is somewhat unique in the world of fashion. Few garments have maintained such a clear presence across social classes while retaining distinct meanings in each context. 

For working men and boys, cloth caps—including flat caps—functioned as practical daily wear. For the upper classes, the same style became part of a leisure wardrobe tied to rural life and sports such as hunting, hiking and driving. This overlap contributed to the flat cap’s enduring cultural identity, linking it simultaneously to labor, tradition, and countryside pursuits.

The 1900s through the 1920s marked the peak of popularity for flat caps, with the one-piece flat cap somewhat favored over the paneled version, the “newsboy cap.” materials ranged from wool tweed to linen and cotton, and in patterns such as houndstooth and Prince of Wales check. 

These variations illustrate that the flat cap was not a single rigid design but a flexible category encompassing multiple related forms, unified by their general shape and function.

Flat caps continued to be worn throughout the 20th century. However, they existed within a broader ecosystem of headwear that was changing.

By the 1960s, hat-wearing in Western societies had declined significantly. Fashionable men and women wore far fewer hats during this period of cultural relaxation. This broader cultural shift affected all forms of everyday headwear, including the flat cap.

The baseball cap supplanted the flat cap as the working man’s default protective lid. Hats in general became emblematic of culture even more; often considered more of an affectation than a serious practical garment. 

For instance, a cowboy hat carries a lot of connotations in our culture; the wearer is into western stuff, is from the west, may like country music, etc. Often it is only after that thought process that we think the person might be wearing a cowboy hat to keep the sun off. 

Meanwhile the flat cap became emblematic of British and Irish identity. Back in the damp old country, men (at least older men) still favored the flat cap for its advantages in the climate. And these were the gents you would meet at the village pub, perhaps joining in a sing-along during a cèilidh.