Men's Swimwear Styles Compared: Briefs, Board Shorts, and Tailored Swim Trunks

April 21, 2026

Men's swimwear spans a wide range of styles, from minimal briefs to knee-length board shorts, with tailored 5-inch swim trunks now the most versatile option for anyone who wants one pair that works from the water to the rest of the day.

Most guys default to whatever style they grew up wearing, or whatever was on the rack the last time they needed something fast. But swimwear styles aren't interchangeable — each one is built around a different silhouette, a different use case, and a very different level of everyday versatility.

This guide breaks down every major style of men's swimwear, what each one is actually good for, and how to think about choosing between them.

Briefs and Square-Cut Trunks

These are the most minimal styles on the market, and they sit at the athletic end of the spectrum.

Swim Briefs

The classic "Speedo" silhouette. Briefs sit low on the hips with a fitted, minimal cut that provides essentially no leg coverage, built with a narrow side seam and an elastic waistband for a skin-tight fit.

Best for: competitive swimming, lap pools, diving, and water polo. Minimal fabric means minimal drag and a full range of motion in the water.

Trade-off: hyper-functional in the pool, but you're not wearing these to lunch. They serve one purpose well, with almost no versatility outside of it.

Square-Cut Trunks

Think of these as the slightly more forgiving cousin of the brief. Square-cut trunks extend a few inches down the thigh in a boxer-brief silhouette while keeping a fitted, body-hugging shape.

Best for: men who want more coverage than a brief but still prefer a streamlined, athletic fit. Common at resort pools and popular across Europe and Australia.

Trade-off: more modest than a brief, but still firmly "swimwear." It doesn't transition to everyday settings and can feel restrictive if a tight fit isn't your preference.

Jammers

Jammers are knee-length, compression-fit shorts built for competitive swimming — essentially a longer version of a brief, made from high-compression technical fabric that extends from the waist to just above the knee.

Best for: competitive and lap swimmers who want reduced drag and muscle support over longer distances. Jammers are a staple in structured swim training and racing.

Trade-off: built for performance in the water and nothing else. Not designed for casual wear, beach days, or anything outside of structured swimming.

Board Shorts

The opposite end of the spectrum from briefs. Board shorts are long and loose, typically falling below the knee, with a flat waistband — often a drawcord or Velcro closure instead of elastic — and wide, relaxed leg openings.

Best for: surfing and water sports where extra coverage protects against board rash, or anyone who simply prefers maximum leg coverage.

Trade-off: all that extra fabric absorbs a significant amount of water, which means long drying times and a heavy, clingy feeling the moment you leave the ocean. The baggy silhouette also reads as increasingly dated next to more tailored alternatives.

Classic Swim Trunks (7-Inch Inseam)

The mid-length trunk most people picture by default when they hear "swimwear." These typically feature a 7-inch inseam, an elastic waistband with a drawstring, a mesh liner, and a relaxed-but-not-baggy fit that hits just above the knee.

Best for: casual beach days, pool parties, and vacations — a safe, conventional choice that's been the default option for years.

Trade-off: classic trunks are fine, rarely great. Many use standard polyester that dries slowly, and the 7-inch length can look a little heavy on shorter frames, with an overall aesthetic that leans sporty rather than refined.

Tailored Swim Shorts (5-Inch Inseam) — The Modern Standard

This is the style that has reshaped men's swimwear over the last several years. Tailored swim shorts feature a shorter 5-inch inseam and a clean, fitted-but-not-tight silhouette that can look just as sharp at a restaurant as it does by the pool.

The difference isn't only the shorter length — it's the design philosophy behind it. Tailored shorts are built to function all day, not just in the water, which means the best versions pair the shorter cut with a fine-yarn, tightly woven fabric that feels soft against the skin and dries in minutes rather than hours.

Best for: nearly everything — morning walks, ocean swims, poolside lounging, lunch, evening drinks. This is the category built to eliminate packing a second pair of shorts for every summer outing.

Trade-off: genuinely minor, as long as the fabric and construction hold up. A poorly made 5-inch short can ride up or feel thin; a well-engineered one is one of the more versatile pieces in a summer wardrobe.

Blauw's tailored swim trunks are built around exactly this concept: a 5-inch inseam for a clean, modern silhouette, finished in OceanKnit™ fabric — a buttery-soft material developed from recycled marine plastic with the SEAQUAL Initiative. It's quick-drying and holds up to salt water and chlorine, with a lightweight micro-mesh liner and signature teal drawstring rounding out the design. For more on how the inseam itself affects fit and proportion, see our full guide to swim trunk length.

Hybrid Shorts

Hybrid shorts try to split the difference between traditional swimwear and everyday casual shorts, typically featuring a belt-loop waistband, zipper fly, and walk-short styling made with water-friendly synthetic fabric.

Best for: men who want something that doesn't visually read as swimwear at all.

Trade-off: hybrids often compromise in both directions. The heavier construction and belt-loop waistband make them noticeably slower to dry than purpose-built swimwear, and despite the casual styling, they rarely look as polished as a proper pair of chino shorts or perform as well as dedicated swim trunks.

Moving Away From Briefs and Square-Cuts

For men used to briefs or square-cut suits, the biggest hesitation about switching to a longer, looser style is usually about losing the freedom of movement those fitted cuts provide. In practice, a 5-inch tailored inseam is the closest equivalent — it keeps excess fabric to a minimum while adding enough coverage to work outside the pool. Starting with a solid, dark colorway (navy, black, charcoal) also tends to make the switch feel less like a wardrobe overhaul and more like a natural next step.

Matching Style to How You Actually Spend Your Day

Body type and height are one way to narrow down a swim trunk style — but how you actually plan to use the shorts is arguably a bigger factor, since it determines which trade-offs are worth making.

Structured lap swimming or training: briefs or jammers make sense here. The minimal, compression fit reduces drag in a way no looser style can match, and you're not wearing them anywhere but the pool deck.
A resort pool trip: square-cut trunks or tailored 5-inch shorts both work well. Square-cuts lean athletic; tailored shorts lean more toward the loungers and the bar afterward.
A surf trip or paddleboarding day: board shorts still earn their place here. The extra coverage protects against board rash in a way a shorter inseam can't replicate.
A beach-to-bar kind of day: this is where classic 7-inch trunks and tailored 5-inch shorts diverge. Classic trunks are fine for the beach portion, but tend to feel heavier and slower to dry once you're off the sand. Tailored shorts are built specifically to handle both halves of the day without a change of clothes.
Travel, with swimming as a side activity rather than the main event: tailored shorts or a well-made hybrid short both work, though hybrids typically dry slower due to heavier construction.

If most of your summer falls into the last two categories — which is true for most men who aren't training or surfing — a tailored 5-inch swim short is the style built for exactly that use case.

Style Comparison Table

Style	Typical Inseam	Best Use Case
Swim Briefs	N/A (briefs cut)	Competitive swimming, lap pools
Square-Cut Trunks	2–3"	Resort / athletic swimming
Jammers	Knee-length	Competitive / lap swimming
Board Shorts	9"+	Surfing, water sports
Classic Trunks	7"	Casual beach and pool days
Tailored Swim Shorts	5"	All-day summer wear
Hybrid Shorts	7–9"	Travel, casual settings

Why Style Matters Less Than Fabric

Here's something worth knowing before you shop by silhouette alone: the style of a pair of shorts matters less than the fabric they're made from. A perfectly cut 5-inch tailored short still feels stiff and slow-drying if the fabric is thick, low-grade polyester. Conversely, a well-engineered fabric can elevate even a simple design.

When comparing options, three fabric qualities matter more than the silhouette itself:

Fine yarn construction — thinner threads create a smoother, softer surface against the skin rather than a scratchy or plasticky one.
Tight weave density — a denser weave sheds water faster, which speeds up drying time considerably.
Lightweight feel — enough body to hold its shape on land, light enough to stay breathable in the heat.

Key Takeaways

Men's swimwear spans several distinct styles — from minimal briefs to knee-length board shorts — each suited to a specific use case.
Tailored 5-inch swim shorts are the modern default for anyone who wants one pair of shorts to cover the whole day, not just the swim.
Board shorts and classic 7-inch trunks are fading as the go-to choice, largely because of slower drying times and bulkier silhouettes.
Fabric quality can matter more than the cut itself — fine yarns and tight weaves determine whether shorts actually feel comfortable, regardless of style.

Frequently Asked Questions

What is the most versatile style of men's swimwear?

Tailored swim shorts with a 5-inch inseam are the most versatile option. They're short enough to look modern, long enough to be functional, and — paired with the right fabric — comfortable enough to wear all day without changing.

What's the difference between board shorts and swim trunks?

Board shorts are longer (typically below the knee), have a flat waistband with a Velcro or drawcord closure, and are built primarily for surfing. Swim trunks are shorter, use an elastic waistband with a drawstring, and are more versatile for general swimming and casual wear.

Are square-cut trunks more comfortable than briefs?

They offer slightly more coverage, but both are built around the same fitted, athletic silhouette. Neither is designed for extended wear outside the pool, so if all-day comfort is the goal, a tailored swim short is a better starting point than either.

Can jammers or briefs double as everyday swimwear?

Not really. Both are purpose-built for competitive or lap swimming, with minimal fabric and a compression fit that doesn't translate to casual settings. For anything beyond structured swimming, a tailored short with more coverage and a versatile design works better.

How do I know which inseam length is right for me?

It depends on your height, build, and how you plan to wear the shorts beyond swimming. For a full breakdown by body type, see our inseam and fit guide.