Swimwear Briefs, Bikinis, Thongs, Micros and More: Why Men Are Trading Surf Shorts for Sexier Swimwear

Men’s swimwear is getting smaller, tighter, brighter, and considerably more adventurous.

For years, especially in the United States, men’s beach fashion was dominated by one overwhelming trend: board shorts and surf shorts. They were long, loose, casual, and often extended almost to the knees. Even men who had no intention of getting anywhere near a surfboard wore them.

That era hasn’t disappeared, but men now have far more choices—and many are discovering they would rather wear something smaller.

Swim briefs, Speedo-style suits, bikinis, Brazilian cuts, thongs, G-strings, micro swimsuits, and other body-conscious designs have dramatically expanded the possibilities for men’s swim fashion.

The result is an exciting change in attitude. Instead of asking, “How much can my swimsuit cover?” more men are asking:

“What swimsuit makes me look and feel great?”

For some, the answer is a traditional swim brief.

For others, it’s a tiny spandex bikini.

And for the most adventurous, it might be a thong or an incredibly small micro swimsuit.

Welcome to the new world of men’s swimwear.

The Long Reign of the Surf Short

To understand how significant the current change is, it helps to remember just how dominant surf shorts became.

Board shorts made perfect sense for surfers. They provided coverage and protection while creating a distinctive surf aesthetic.

Eventually, however, surf culture became mainstream fashion.

Suddenly everyone was wearing them.

Teenagers wore board shorts. College students wore them. Middle-aged men wore them. Guys at hotel pools wore them. Men on cruises wore them. Vacationers who had never touched a surfboard wore them.

For a period, it almost seemed as though men’s swimsuits were required to reach the knees.

Meanwhile, women’s swimwear was moving in exactly the opposite direction.

Women’s bikinis became smaller, cheekier, higher cut, and more revealing while men’s suits remained comparatively huge.

That contrast was bound to change eventually.

And it has.

Men Are Rediscovering the Swim Brief

The swim brief never really disappeared.

Competitive swimmers continued wearing streamlined swimwear, while brief-style men’s swimsuits remained common in many parts of Europe and elsewhere around the world.

But fashion moves in cycles.

As men’s clothing became more fitted and body-conscious, the classic swim brief suddenly began looking fresh again.

A good swim brief is simple.

It fits closely.

It doesn’t flap around in the water.

It dries quickly.

It allows considerably more sun exposure than board shorts.

And most importantly for many wearers, it shows the body rather than hiding it.

That makes the swim brief an ideal starting point for men who are ready to leave oversized surf shorts behind.

The Speedo Effect

“Speedo” is technically a brand name, but the word has become common shorthand for men’s racing-style swim briefs.

For decades, Speedo-style suits had an interesting reputation. They could simultaneously represent serious athletic swimming, European beach fashion, gay beach culture, bodybuilding, and extremely confident vacation wear.

Today those categories increasingly overlap.

A man doesn’t have to be a competitive swimmer to wear a swim brief.

He doesn’t have to have a particular sexual orientation.

And he certainly doesn’t need anyone else’s permission to choose one.

The modern swim brief has become simply another men’s swimsuit option.

For many men, it is also the gateway to considerably smaller designs.

From Swim Briefs to Men’s Bikinis

Once a man becomes comfortable wearing a brief, the transition to a bikini can be surprisingly easy.

Men’s bikinis generally take the basic concept of the swim brief and reduce it.

The sides become narrower.

The rise becomes lower.

The legs become higher cut.

The rear may become slightly cheekier.

The front pouch can become smaller or more sculpted.

The result is a swimsuit that feels much more like fashion than traditional athletic swimwear.

Spandex and other high-stretch fabrics have made this category especially diverse.

Today’s men’s bikini can be sporty, masculine, feminine, minimal, glamorous, outrageous, or almost indistinguishable in styling from a women’s bikini bottom.

That variety is helping men’s swimwear escape its old limitations.

Brazilian Cuts Bring the Cheeks Out

Between a bikini and a thong sits another increasingly popular category: the Brazilian or cheeky brief.

Rather than covering the entire buttocks, Brazilian designs intentionally reveal part of the cheeks.

For men who want something sexier without immediately jumping into a thong, this can be an excellent middle ground.

The look is unmistakably body-conscious.

It says that the smaller swimsuit is intentional.

And that attitude is central to today’s men’s swimwear revolution.

Then Comes the Thong

For a long time, men’s thong swimwear was treated as extremely niche.

Not anymore.

Thong swimsuits for men now range from relatively substantial designs with conventional front pouches to extraordinarily tiny creations with string sides, micro fronts, and almost nonexistent backs.

The thong changes the entire visual balance of men’s swimwear.

Instead of trying to hide the butt, it celebrates it.

That represents a significant cultural shift.

Men increasingly train their glutes, legs, and entire bodies. If someone has spent months or years building a physique, it isn’t surprising that some don’t want to cover most of it with oversized shorts.

A thong provides the opposite experience.

It turns the body itself into the centerpiece of the beach look.

G-Strings Take Minimalism Further

If a thong is minimal, a G-string asks whether even the thong is using too much material.

G-string swimwear typically reduces the rear to little more than a narrow string or strap. The sides can be equally tiny.

That leaves the front as the primary piece of fabric.

And even that front can be extremely small.

Men’s G-strings remain among the more daring choices for public swimwear, and acceptance depends heavily on the location and venue. But their existence demonstrates just how broad men’s swimsuit fashion has become.

We have gone from knee-length shorts to swimsuits consisting largely of strings.

That is quite a fashion journey.

Men’s Micro Swimwear Changes Everything

Then we reach the category that pushes minimal swimwear toward its logical extreme:

the men’s micro swimsuit.

There isn’t one universal definition of “micro.” It is more useful to think of micro swimwear as a design philosophy.

Remove unnecessary material.

Reduce the front.

Narrow the sides.

Reduce the rear.

Lower the rise.

Use the stretch of the fabric to accomplish more with less.

The result can be astonishing.

Some men’s micro swimsuits are smaller than many women’s bikini bottoms.

That would have sounded almost absurd during the peak of the board-short era.

Today it is part of the men’s swimwear landscape.

When Micro Becomes Ultra-Micro

Naturally, once designers created micro swimsuits, someone had to ask:

Can we make them even smaller?

Enter the ultra-micro.

Ultra-micro men’s swimwear can use exceptionally small front pouches, extremely narrow straps, tiny rear panels, or G-string constructions.

High-stretch spandex makes these designs possible because a remarkably small amount of fabric can expand significantly when worn.

Ultra-micro swimwear isn’t going to replace conventional trunks.

That isn’t the point.

Its importance comes from giving men another option at the extreme end of the spectrum.

Men’s swimwear now genuinely ranges from knee-length board shorts to garments using only the minimum amount of fabric their designers believe necessary.

The Front Pouch Has Become a Fashion Statement

One reason men’s swimwear has become so interesting is the enormous variety of front designs now available.

Traditional swimwear generally treated the front as something functional.

Modern swimwear designers treat it as part of the fashion.

A pouch can provide natural coverage.

It can enhance the anatomy.

It can create a pronounced bulge.

It can compress and minimize.

It can create a smooth silhouette.

It can be masculine, neutral, or feminine in presentation.

That means two swimsuits with almost identical backs can create completely different appearances from the front.

This has opened the door to a much larger world of self-expression.

Gender Lines Are Becoming Less Important

Another major development is the crossover between men’s and women’s swimwear.

Women’s bikinis have influenced men’s cuts.

Men’s athletic fabrics have influenced women’s designs.

Thong styles overlap.

String bikinis overlap.

Colors overlap.

Prints overlap.

High-cut legs overlap.

Micro styles overlap.

A swimsuit no longer necessarily announces whether it came from the men’s or women’s side of a store.

For gender-fluid, nonbinary, feminine, and adventurous male wearers, that provides enormous creative freedom.

But the crossover isn’t limited to any particular identity.

A traditionally masculine straight man can decide he likes a tiny bikini.

A gay man can prefer board shorts.

A feminine man can choose a thong.

A competitive swimmer can wear a brief.

The garment itself doesn’t define the person wearing it.

Why Are Men Moving Toward Sexier Swimwear?

Several trends are happening simultaneously.

First, men’s fashion generally has become more body-conscious. Fitted shirts, slim trousers, compression clothing, leggings, athletic tights, and short athletic shorts have made close-fitting garments much more familiar.

Second, fitness culture has changed how many men feel about displaying their bodies.

Third, social media and international travel have exposed people to swimwear traditions outside their own communities.

Fourth, old rules about masculinity have weakened. A man can care about fashion, grooming, tanning, colors, fabrics, and looking sexy without needing to justify those interests.

Finally, there is a very simple explanation:

Small swimsuits can be fun to wear.

Men Want to Feel Sexy Too

This point deserves more attention.

Women’s fashion has long been allowed to use words such as sexy, cute, daring, glamorous, cheeky, and revealing.

Men’s fashion was often sold differently.

Practical.

Rugged.

Athletic.

Durable.

Masculine.

Those qualities are fine, but why shouldn’t men’s swimwear also be sexy?

Increasing numbers of men appear comfortable with exactly that idea.

A swimsuit can be functional and sexy.

It can be masculine and sexy.

It can be feminine and sexy.

It can be tiny simply because the wearer loves the way it looks.

Men don’t have to pretend that appearance isn’t part of choosing swimwear.

Better Tan Lines Are Another Advantage

There is also a practical reason to ditch long shorts.

Sun exposure.

Board shorts can cover a substantial percentage of the legs. If someone spends a lot of time outdoors, the resulting tan lines can be dramatic.

Swim briefs provide more exposure.

Bikinis provide even more.

Thongs reduce the covered area further.

Micro suits can produce exceptionally small tan lines.

Naturally, less fabric also means more exposed skin requiring appropriate sun protection.

Going From Board Shorts to a Bikini

A man who has worn nothing but board shorts for twenty years probably doesn’t need to begin with an ultra-micro thong.

There is an entire spectrum available.

A comfortable progression could look like this:

Board shorts → shorter swim trunks → square-cut suit → swim brief → bikini → Brazilian → thong → micro → ultra-micro.

You can stop anywhere.

Some men discover that a classic swim brief is perfect.

Others quickly become bikini enthusiasts.

Some eventually decide they love thongs.

And a smaller group discovers that once they have gone micro, conventional swimwear suddenly feels enormous.

The important point is that there is no correct destination.

Your First Tiny Swimsuit Can Feel Very Tiny

There’s a funny thing about minimal swimwear.

Your perception changes.

The first time you hold a men’s bikini after years of wearing board shorts, it may look ridiculously small.

The first time you wear it publicly, it may feel even smaller.

After several beach trips, however, it begins to feel normal.

Then you see a thong and think, “I could never wear that.”

Eventually you try one.

That becomes normal too.

Then someone shows you a micro.

The cycle can repeat.

What people consider “normal” swimwear is often heavily influenced by what they are accustomed to wearing.

Location Still Matters

Fashion freedom doesn’t mean every swimsuit is appropriate everywhere.

A tiny bikini might be completely ordinary at one beach and attract considerable attention at another.

Private resorts, cruises, hotel pools, public beaches, family recreation centers, clothing-optional beaches, gay resorts, and conservative communities can all have very different expectations.

Some facilities also maintain specific dress codes.

The smaller and more revealing the swimsuit becomes, the more worthwhile it is to understand the environment before wearing it.

Being adventurous and being considerate can easily coexist.

Fit Becomes Critical With Micro Swimwear

As swimsuits become smaller, proper fit becomes increasingly important.

An oversized pair of trunks has plenty of margin for error.

A micro bikini doesn’t.

Before wearing a particularly small design publicly, test how it behaves while:

• Walking
• Sitting
• Bending
• Swimming
• Getting out of the pool
• Climbing stairs
• Lying on a towel
• Moving after the fabric becomes wet

A suit that looks perfect while standing in front of a mirror may behave differently during actual swimming.

Sexy swimwear should still function as swimwear.

From Hiding the Body to Celebrating It

Perhaps this is the best way to understand the larger trend.

Board shorts often hide the body.

Briefs reveal it.

Bikinis frame it.

Thongs celebrate it.

Micros make it virtually impossible to ignore.

None of those approaches is inherently superior. Sometimes a man genuinely wants comfortable surf shorts.

But having choices matters.

For decades, women were given hundreds of ways to choose exactly how much—or how little—swimsuit they wanted.

Men are increasingly discovering the same freedom.

The Guy Might Be Wearing the Smaller Suit

One of the most fascinating results is what happens when men’s and women’s contemporary swimwear appear together.

You might see a woman in a standard bikini beside a man wearing a micro bikini.

His suit can be smaller.

A woman in a conventional thong might be beside a man in a micro thong.

Again, his can be smaller.

The assumption that women wear tiny swimsuits while men cover themselves in shorts simply doesn’t describe the entire modern beach anymore.

Sometimes the smallest swimsuit belongs to the guy.

And increasingly, he is perfectly happy about that.

What Comes After Micro?

Nobody really knows.

That is part of the fun of fashion.

Designers will continue experimenting with stretch technology, pouch engineering, string construction, compression, gender-neutral silhouettes, feminine-inspired cuts, unusual fabrics, and increasingly minimal coverage.

At the same time, retro swim briefs and classic bikinis are likely to remain popular because not everyone wants to push minimalism to its extreme.

The future isn’t one swimsuit replacing another.

It’s more choices.

Board shorts aren’t disappearing.

Neither are trunks.

Instead, men’s swimwear is expanding around them.

A New Era of Men’s Swimwear

The most important transformation isn’t measured in inches of fabric.

It is the change in attitude.

Men are becoming more comfortable treating swimwear as fashion and self-expression rather than merely something practical to wear into the water.

That opens an enormous range of possibilities.

Swim briefs. Bikinis. Brazilian cuts. Thongs. G-strings. Micros. Ultra-micros. Gender-fluid designs. And everything in between.

The man who has spent his entire life wearing surf shorts now has more alternatives than ever.

He can start conservatively or jump directly into something adventurous.

He can emphasize his body or create a smoother silhouette.

He can choose masculine styling, feminine styling, or something that deliberately falls somewhere between them.

Most importantly, he can choose what makes him comfortable and confident.

Final Thoughts

Men’s swimwear is undergoing an exciting expansion.

The oversized surf short no longer has to be the automatic uniform for every man at every beach. Swim briefs have returned to prominence, men’s bikinis continue to diversify, thongs have become more visible, and micro swimwear is pushing minimal design further than men’s mainstream beach fashion once would have imagined.

Some men will always love board shorts—and there is nothing wrong with that.

But plenty of others are discovering something completely different.

They’re discovering the freedom of a swim brief.

Then the confidence of a bikini.

Then perhaps the thrill of a thong.

And for the particularly adventurous, the astonishing minimalism of a micro.

Men’s swimwear isn’t simply getting smaller.

It’s becoming more expressive, more individual, more body-confident, and a whole lot sexier.