What Did Men Wear in the 1920s? | Roaring Twenties Style

Men in the 1920s traded stiff Victorian formality for softer, looser suits with attached collars, wider trousers, and a new embrace of sportswear.

The 1920s reshaped men’s fashion in the U.S. more dramatically than any decade before it. The rigid, corseted silhouette of the Victorian and Edwardian eras gave way to clothing built for movement — shorter suit jackets, softer fabrics, and a growing wardrobe of casual leisure clothes. Whether you’re dressing for a Gatsby-themed event or researching the era’s tailoring, the decade breaks into two distinct looks: the trim, high-waisted style of the early years and the looser, wider silhouette that took over by 1925.

The Day Suit: From High Waists to Oxford Bags

The suit jacket was the centerpiece of a man’s wardrobe, and its cut changed noticeably across the decade. Early 1920s jackets ran high-waisted with narrow lapels, carrying over some Edwardian stiffness. By the mid-to-late 1920s, jackets loosened considerably, lapels widened, and waist suppression relaxed into a straighter, more comfortable line.

Trousers tell the clearest story of the decade’s swing. Early on, they were relatively narrow and worn slightly short — a clean, tailored look. Cuffs began appearing around this time, and then came the watershed moment: around 1924–1925, the famous “Oxford bags” arrived. These extremely wide-legged trousers, reportedly popularized by Oxford University students, became a defining (if not universal) fashion statement of the mid-decade.

Shirts, Collars, and Vests

One of the quietest but most significant shifts was the collar. Men abandoned the stiff, starched detachable collar in favor of softer attached collars by the mid-1920s. This single change made the entire silhouette feel less formal and more practical.

Three-piece suits remained common, but the waistcoat started losing its grip. A growing number of styles dropped the vest entirely for a two-piece suit, and the late 1920s even saw double-breasted vests come into fashion. As with everything else in the decade, the trend arrow pointed toward fewer layers and more ease. If you’re assembling a 1920s look today, a two-piece suit with a soft collar shirt reads more authentically mid-decade than a stiff three-piece.

Formal Wear and the Rise of Sportswear

The rules for formal occasions were strict and occasion-based. For daytime formal events, the morning suit — a cutaway coat with striped trousers — was the expected uniform. Evening wear saw the real change: the tuxedo (or dinner jacket) gained steady ground, while the tailcoat became increasingly old-fashioned. For most social evenings by the late 1920s, the tuxedo had won.

The decade’s biggest headline, though, was the mainstream arrival of sportswear. Sweaters, knickers, and the knee-length plus-fours moved from the golf course into everyday leisure wear — a development that barely existed in earlier decades. Men now had a legitimate casual wardrobe beyond their work suits. Suits were typically finished with a hat — fedoras, homburgs, bowlers, trilbies, straw boaters, or caps depending on class, season, and occasion.

Fabrics and Style Mistakes to Avoid

Tweeds, flannels, and pinstripes dominated, with British tailoring as the gold standard. As the decade progressed, lighter colors and softer fabrics gained acceptance, moving further from the heavy, dark wools of the prior era.

When building a 1920s outfit, avoid these common traps: treating the decade as one uniform look (the early and late years are genuinely different), assuming everyone wore formal suits (sportswear was everywhere), and defaulting to a tailcoat for evening events (a tuxedo is more period-correct for most occasions). The decade’s style is often remembered as flashy, but a great deal of it was conservative, class-conscious, and tied to the specific occasion.

For warmer-weather events, a proper period look extends to the water. Our roundup of the best 1920s men’s swimsuits covers the era’s striped, wool-blend designs if you’re completing a full ensemble.

Alongside the fit changes, tops were always finished with a hat, and fabrics followed British tradition — tweed and flannel for day, pinstripes for the city, and lighter materials as the decade wore on. The overall message of 1920s menswear is one of gradual liberation: from stiff collars to soft ones, tight fits to loose ones, and formal-only dressing to a wardrobe with real casual options.