How to choose mens swimwear according to your body shape (complete expert guide)

Category: Pánske plavky – trendy, výber a inšpirácia

Mens swimwear belongs among the most underrated elements of a man”s summer outfit. Most men are guided by design, color, or current trend when choosing — but in practice, something completely different decides the outcome: your body proportions and the right cut. The same model can look balanced and aesthetic on one body and emphasize flaws on another. The issue is not the quality of the swimwear, but the wrong match between cut and physique.

This article is built as an expert guide. It draws on 19 years of experience by DESSUE specialists testing swimwear in real conditions — in pools, salt water, and thermal baths. It is not just general advice like "slim guys wear boxers and bigger guys wear shorts." We will look at how to objectively measure your own proportions, why a particular cut works on one body and not on another, what an anatomical cut and Push-Up Pack can do — and the 6 marks by which you can recognize quality swimwear at first touch.

Table of contents


Why body shape matters more than trend or color

Every cut of swimwear creates a certain optical illusion. Some models reveal more of the thigh and thereby lengthen the legs. Others cover the hips and calm the silhouette. Some create a precise, athletic line; others appear more relaxed and casual. With swimwear this effect is strong because the garment works with a minimum of fabric — every edge, length, and width is immediately visible on the body.

The final visual impression is shaped above all by three parameters: the shoulder-to-hip ratio, the torso-to-leg ratio, and the overall optical height of the figure. The cut of swimwear can correct each of these or, on the contrary, make them worse. That is why it is not enough to say a certain type of swimwear is "modern" or "popular." Modern it may be, but it does not have to suit a specific body. A good choice begins with the question: what are my proportions, and what do I need to visually support or play down?

Mens swimwear and body proportions — DESSUE expert guide


How to objectively measure your own body

Before you start dealing with cut, length, or color, you need to know your own proportions. You don”t need a measuring tape and complicated tables — three simple looks in the mirror and two measurements are enough.

1. Shoulder-to-hip ratio (V-line index)

Stand in front of the mirror, square your shoulders, and let your arms hang along your body. Watch where the width of your shoulders ends in proportion to the width of your hips:

  • Shoulders distinctly wider than hips (difference around 12 cm or more) → V-shape, the classic athletic body
  • Shoulders the same width as hips → balanced build (often slim or compact)
  • Shoulders narrower than hips → A-shape, weight in the lower body (often combined with a wider waist)

2. Torso-to-leg ratio

Side view in the mirror: place your thumb on your navel and check whether your torso is longer, or your legs. Bodies with a short torso and long legs can carry longer shorts without harm. Bodies with a longer torso and shorter legs need a shorter cut so that the leg edge moves higher.

3. Overall optical height and volume

The last parameter is the perceived compactness of the body — not BMI, but visual height. A tall slim body needs to add volume. A short compact body needs to be visually stretched. This matters because two men with the same measurements (180 cm, 80 kg) can have completely different body types depending on the ratio of shoulders, hips, and leg length.

Only when you have these three pieces of information does it make sense to choose a specific cut. Without them, you are picking blind.


Four basic types of male body shape

For practical selection, male bodies can be divided into four main groups. In reality, of course, they often overlap — a man can be both shorter and wider, or slim with athletic shoulders. This division still helps to understand the basic logic of choice. A detailed overview of each cut and which type it suits best is in the article types of mens swimwear.

Slim build (narrow shoulders, narrow waist, low volume)

Characterized by low muscle mass, narrow hips, and often a taller body without prominent shoulder width. When choosing mens swimwear, the main aim is to add visual volume and balance the long body line.

Athletic build (V-shape — shoulders distinctly wider than waist)

Has a naturally good ratio between shoulders, waist, and legs, visible muscle definition, and balanced symmetry. Aim — not to disturb the natural symmetry with the wrong cut or length.

Wider build (volume in the waist and around the belly)

Includes men with a fuller waist, belly, or hips. The main aim is to visually calm the waist and hips, clean the line, and not draw attention to the parts the man does not want to emphasize.

Shorter build (up to about 175 cm, often compact)

Requires very careful work with length. The aim is to visually elongate the body and move the leg edge higher, so the body does not appear compressed and compact.


Slim build — adding volume and balancing the silhouette

A slim body is often mistakenly considered easy when choosing swimwear. At first glance it seems that anything suits this body type. In reality the opposite is true — with a very slim silhouette the wrong cut shows up extremely fast. If the model is too long, too narrow, or too dark, the body starts to look even narrower and more "stretched."

Which cuts work

Mens boxer swimwear and shorter swim shorts work very well — they widen the lower body and create a more balanced transition between waist, hips, and legs. Models with a lighter color or a contrasting detail in the hip and thigh area also work well. This is exactly where the advantage of Roberto LUCCA”s specially mixed colors shows — the palette of saturated tones developed to the brand”s specifications adds visual volume without looking heavy.

When to consider the Push-Up Pack

For a very slim body without prominent volume in the thighs and hips, the PUSH UP PACK makes sense — an anatomical insert that emphasizes the natural proportions of the front section and adds the missing volume to the silhouette. Combined with brief swimwear by Roberto LUCCA, which has an anatomical cut with an opening for the pack, you get a precise athletic line without extreme narrowness.

What to avoid

The problem is usually too-long shorts — on the hanger they may look modern, but on a slim body they extend the lower body even more and remove its volume. Equally, work carefully with very narrow dark briefs without any visual counterweight.

Mens boxer swimwear Roberto LUCCA for slim build — DESSUE


Athletic build — preserving the V-line and symmetry

The athletic body (V-shape) is the most rewarding when choosing swimwear — and that is exactly why men often make unnecessary mistakes here. Wide shoulders combined with a narrow waist create a natural V-line that does not need fixing. The main aim is not to ruin it with the wrong cut or length.

Which cuts work

An athletic body usually carries mens brief swimwear, mens boxer swimwear, and shorter swim shorts well. Briefs emphasize the line of hips and thighs and look very sporty. Boxer cuts maintain the dynamic but give the body a slightly more casual look. Shorter shorts can keep the athletic feel without covering the thighs and visually "wrapping" the body.

Material quality also stands out on an athletic body. Roberto LUCCA”s Hi-Tech polyester, specially treated to the brand”s specifications, holds the line of the swimwear precisely on the body and does not crease in motion — which is exactly what an athletic body needs to remain readable.

What to avoid

The biggest problem comes when a V-shape man reaches for a too-loose or too-long model. Wide boardshorts or extremely long shorts hide what is naturally balanced about the body. A wide bottom weakens the waist, shortens the legs, and removes the silhouette”s sharp character.

The cut should not just be tight, but precise. With an athletic body it is not about the swimwear pressing on the body — but tracing it.


Wider build — visually calming the waist and hips

For a wider body, the basic goal is balancing the silhouette. A man with a fuller waist, belly, or hips does not need swimwear that will "pull him in" at all costs. He needs a model that visually calms him, cleans the line, and does not draw attention to the places he does not want to highlight.

Which cuts work

Swim shorts with a slightly loose but not excessively wide cut work best. Such a model does not create unnecessary clinging in the belly and hip area but does not look bulky either. The ideal is medium length — that is what does the most for the balance between coverage and proportion.

Darker colors, more matte surfaces, and cleaner lines without overly bold contrasts in the waist area work very well. A dark model is not automatically a boring one — it just means it will not visually widen the center of the body. The advantage of Roberto LUCCA is felt again here when choosing color: the brand mixes colors in precisely controlled tones, so even classic black or navy looks premium, not cheap.

What to avoid

The biggest mistake is choosing too-tight swimwear. Men sometimes think a smaller and tighter model will look more athletic. In practice they get the opposite — a too-narrow cut emphasizes the waist and grabs the hips. Be careful with briefs and very narrow boxers as well, especially when hips and waist dominate. Equally unsuitable are extremely long and wide boardshorts that weigh down the body.

Medium-length mens swim shorts for wider build — Roberto LUCCA


Shorter build — visually elongating the body

A shorter body requires very careful work with length. This is where you can see how much a few centimeters of fabric more or less can do. If the model needlessly covers a large part of the thigh, the body is visually compressed. If the cut is set well, the body gains lightness and the legs start to look longer.

Which cuts work

For a shorter body, shorter shorts or boxer cuts ending above mid-thigh or right around it are the best choice. Such a cut moves the leg edge higher, lets the thigh stand out, and creates the illusion of greater height. Mens boxer swimwear can also work very well — it gives the body a clean, precise line without taking away height. For an athletic shorter body, mens brief swimwear works as well. A detailed analysis of shorts lengths is in the article mens swim shorts — cut, length and style.

What to avoid

Shorter men often instinctively reach for longer swimwear in the belief that more coverage gives them confidence. But a long model usually hurts them the most. Long boardshorts or shorts ending too low shorten the legs and make the body heavier. The body then looks compact rather than dynamic.


Swimwear length as a key proportion factor

Length is often underestimated when choosing swimwear, but in reality it is a parameter that may change the final look even more than the cut itself. Short swimwear reveals more of the thigh and visually lengthens the legs. Medium length is universal and safe. Long swimwear often shortens the body and widens the silhouette, especially when also loose.

Short swimwear (well above mid-thigh)

Moves the leg edge higher and creates the illusion of greater height. Looks dynamic, sporty, optically active. Works best for shorter, slim, and athletic builds.

Medium length (to mid-thigh)

The universal solution. Works for the wider build, where it provides coverage without making the body more compact. Also works for the taller athletic build. Carries the least risk — that is why it is favored by men unsure of their choice.

Long swimwear (to the knee or below)

Shortens the body and widens the silhouette. A tall athletic body can carry it without harm — shorter or slimmer men should avoid it. A long cut always pushes the leg edge down and makes the body heavier.


Anatomical cut and Push-Up Pack — when and for whom

The anatomical cut is a technical detail in mens swimwear that distinguishes premium from standard models without men noticing it on the first try. It refers to a shaped front section — a layered cut with stitching that creates support and traces the anatomy of the body more precisely. In standard cheap swimwear, the front section is sewn flat from a flat piece of fabric. In premium Roberto LUCCA models, it has its own shape, separate stitching, and in some models also an opening for inserting the PUSH UP PACK.

Who benefits from the anatomical cut without the Push-Up Pack

The anatomical cut alone is suitable for any body — it improves the overall fit of the swimwear, removes tension at the waistband, and creates a more precise line in the front section. It is most appreciated by athletic and slim builds, where the clean athletic line is one of the key effects.

Who benefits from the Push-Up Pack

The Push-Up Pack is a separate anatomical insert (price 4.99 €) that fits into the opening in the anatomically shaped front section of compatible Roberto LUCCA models. It is most appreciated by men who:

  • Have a slim body without prominent volume — the insert adds the missing mass and creates balanced proportions
  • Feel insufficient confidence in tighter models — the insert improves confidence with brief swimwear
  • Want a clean athletic line — the insert highlights anatomical proportions even on an athletic body

The Push-Up Pack is one universal size, compatible with multiple Roberto LUCCA models — primarily briefs of the 10100 series and selected boxer cuts. When buying, check whether the chosen model is compatible with the insert.


Hi-Tech polyester — why material decides how swimwear sits

Material is often discussed last, but with swimwear it should be one of the first criteria. The reason is simple: cut works only as long as the material holds its shape. If the waistband stretches after a few uses, the hips go soft, or the swimwear loses stability after getting wet, the visual effect drops immediately — regardless of the original cut being good.

Why Roberto LUCCA uses 100% Hi-Tech polyester

Mens swimwear by Roberto LUCCA in the DESSUE range uses 100% Hi-Tech polyester specially treated to the brand”s specifications. Polyester as a base has one decisive advantage — it is significantly more resistant to chlorine and UV than materials with a higher elastane share, which chlorine breaks down the fastest. That is why quality technical swimwear materials work with treated polyester instead of the classic 80/20 polyamide/elastane mix that gives elasticity but at the cost of shorter pool life.

The special treatment of the material also keeps elasticity without needing a high elastane share — thanks to the weave construction and surface finalization. Details on why some materials dry quickly and others stay wet and cold for a long time are explained in the article how fast drying works in practice.

Specially mixed colors as a technical parameter

The second thing that makes Roberto LUCCA different is color. Colors are mixed specifically to the brand”s specifications — not standard polyester tones that turn grayish after a few dozen swims. Color stability is a technical parameter directly related to how the model will look after the season. Detailed effects of chlorine on color are covered in the article what chlorine does to swimwear and how it affects durability.

Real lifespan — what testing at DESSUE shows

Long-term testing at DESSUE — including pools, salt water, and thermal baths — confirms: quality Roberto LUCCA swimwear in Hi-Tech polyester takes 40–50 swims per season without visible change in elasticity, color, or fit. With reasonable care it lasts 2–3 seasons of regular use without losing its functional and visual properties. Cheap polyesters with standard treatment show first changes in elasticity and color after just 10–20 swims; after 30–50 swims they lose most of their original properties. A detailed comparison of premium versus regular models is in the article how designer mens swimwear really differs from ordinary models.

Hi-Tech polyester Roberto LUCCA — quality material for long swimwear lifespan


6 marks that identify quality swimwear at first touch

These are six details by which a DESSUE expert recognizes quality mens swimwear at first touch — without measuring, without tables, without studio photos. Just take the swimwear in your hand.

1. Material weight when squeezed in the palm

Quality Hi-Tech polyester feels full when squeezed in the palm. It has density, weight, and quickly returns to its original shape after release. Cheap polyesters are thin — when stretched across the palm they show through, and after release they take a moment to flatten. This test works immediately, regardless of the price tag.

2. Waistband with flat elastic and integrated stitching

The waistband of quality swimwear is smooth, with no irregular outer seams; the elastic is integrated directly into the fabric and firmly sewn in. A cheap waistband has elastic "stuck" on top, often with visible stitching at the upper edge — that one starts to ripple after the first swims, and the silicone band turns into a soft tube. The waistband is the place where swimwear loses its shape first.

3. Drawstring with solid tips and quality braiding

Premium Roberto LUCCA models have a drawstring that is textile, firmly braided, with metal or plastic tips bearing the brand logo. Cheap swimwear has a thin nylon drawstring, often without tips or with plastic ones that start to crack after a few swims. A frayed drawstring end is a universal mark that does not happen on quality swimwear even after a season.

4. Inner satin label

Premium swimwear has a soft, satin inner label that does not scratch and is sewn in smoothly. Cheap swimwear has a hard printed label directly on the material, which pokes at the waistline. You won”t see this detail from a distance in the store — you”ll see it the moment you turn the swimwear inside out.

5. Anatomical front section

The premium front section is shaped — it has a curve, separate stitching, and in some models an opening for the Push-Up Pack. The cheap front section is sewn flat from flat fabric, without shaping. When you spread the swimwear out on a flat surface, this difference is immediately visible and felt in the hand.

6. Full lining instead of mesh

This is a detail many men do not check when buying — and after the first swim they realize it is decisive. Mens swimwear and briefs by Roberto LUCCA have a full inner lining made of the same quality material, not mesh. Full lining means:

  • No see-through after getting wet — with mesh-lined cheap models, after getting out of the water the wet fabric becomes semi-transparent, which can end in an embarrassing situation on the beach or at the pool
  • Full coverage regardless of light — under bright sun or artificial lighting, the difference between mesh and full lining is immediately visible
  • No scratching or skin irritation — during athletic motion in the pool, the full smooth lining does not scratch like classic mesh
  • Better cut stability — full lining holds the swimwear”s shape on the body even during intensive swimming

If you hold swimwear in your hand and find that the inner layer is a coarse mesh — regardless of how nicely it looks from outside — you know you can find yourself in an awkward situation on the beach. Full lining is one of the main reasons Roberto LUCCA can be worn even at exotic resorts and wellness venues without compromise.

If the swimwear meets all 6 marks, it belongs to the premium segment. If it meets 4 out of 6, it is above-average mid-segment. If it does not meet at least 3 out of 6, you are holding a cheap product in your hand — regardless of the price you paid for it.

6 marks of quality mens swimwear — DESSUE experts


The most common mistakes when choosing swimwear by body shape

Most mistakes happen not because men have nothing to choose from, but because they follow the wrong criteria. Very common is following trend instead of proportion. The fact that a particular season favors longer shorts or very minimal briefs does not mean they suit every body.

Another mistake is ignoring length. Men often choose a model just by pattern or color and do not notice that the leg ends at a disadvantageous spot. With that, the whole silhouette is ruined before material or function even come into play.

A big problem is also the wrong size. Too-small swimwear does not look athletic, but tense. Too-large swimwear does not look comfortable, but imprecise. And finally there is underestimating material and lining — the man chooses a cut that fits, but does not notice mesh inside instead of full lining, or that the material loses elasticity after a few swims.

That is why it is good to choose methodically — in this order: first proportions, then cut, then length, then material and lining, and only at the end color or trend.


Frequently asked questions (FAQ)

1. What swimwear cut is best for a slim body?

For a slim body, boxer cuts and shorter swim shorts work best, adding visual volume in the thigh area. For very slim silhouettes, the Push-Up Pack in brief models with anatomical cut also makes sense. Avoid very long and narrow dark briefs — they stretch the body even more.

2. Can an athletic body wear any swimwear?

An athletic body (V-shape) carries more cuts than other types, but the rule still applies: do not ruin the V-line. Too-loose boardshorts hide what is balanced about the body. Briefs, boxer cuts, and shorter shorts work best.

3. What mens swimwear is suitable for a wider body?

The best choice is medium-length swim shorts with a slightly loose but not wide cut. Darker colors and clean lines help to visually calm the waist and hips. Avoid too-tight models — they emphasize the waist, they do not slim it down.

4. How can a shorter body visually elongate the legs?

Shorter shorts or boxer cuts ending above mid-thigh push the leg edge higher and create the illusion of greater height. Long boardshorts or knee-length swimwear compress the body compactly.

5. What does the Push-Up Pack do exactly, and who benefits most?

The Push-Up Pack is an anatomical insert that fits into the opening in the anatomically shaped front section of compatible Roberto LUCCA models. It is most appreciated by men with a slim body without prominent volume — the insert adds the missing mass and creates balanced athletic proportions. Price is 4.99 €, and it is a separate accessory product.

6. Why is full lining important instead of mesh?

Full lining in Roberto LUCCA swimwear and briefs means complete coverage regardless of whether the swimwear is wet or under bright sun. Cheap mesh-lined swimwear can become semi-transparent after getting wet, which often ends in an awkward situation on the beach or at the pool. Full lining also does not scratch and holds the swimwear”s shape during athletic motion.

7. Why is 100% Hi-Tech polyester better than the classic polyamide/elastane mix?

Hi-Tech polyester specially treated to Roberto LUCCA specifications is more resistant to chlorine, salt water, and UV than materials with a higher elastane share, which chlorine breaks down the fastest. The special weave construction keeps elasticity without needing a high elastane share — the result is longer life with comfort preserved.

8. How many seasons does quality Roberto LUCCA swimwear last?

With reasonable care (rinsing after every swim, drying in the shade, no dryer), quality Roberto LUCCA swimwear lasts 2–3 seasons of regular use. In DESSUE testing, the material handles 40–50 swims per season without visible change in elasticity, color, or fit. In thermal water (36–40 °C), degradation is 2–3× faster than in a standard pool.

9. What mens swimwear to choose for combined use — pool and sea?

For combined use, boxer cuts or shorter medium-length swim shorts are most universal. Boxer cuts handle swimming and relaxing; medium-length shorts are elegant on the beach as well as in casual settings. The key is quick-drying material that handles alternating water and sun.


The right mens swimwear by body shape is no accident, but the result of a systematic choice — proportions, cut, length, material, and lining, in exactly this order. Browse the full collection and pick a model that works not just visually, but in practice as well.



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