The Best Men’s Underwear: The Ultimate Guide to Comfort, Fit and Performance
There’s something slightly absurd about how long it takes men to take underwear seriously.
We’ll debate tailoring, obsess over sneakers, and spend far too much time choosing a watch — yet the layer closest to the skin is often treated as an afterthought, replaced only when absolutely necessary or when elastic finally gives up entirely.
And yet, underwear quietly shapes everything. Comfort, posture, confidence, even the way clothes sit on the body all begin there. The wrong pair can make a great outfit feel wrong. The right pair disappears entirely, which is precisely the point.
In 2026, the category has become more interesting than ever. Technical performance fabrics now sit alongside heritage cotton mills and luxury fashion houses. There are options designed for running, for travel, for long office days, for heat, for winter, and for no reason other than the fact they feel exceptionally good to wear.
The challenge is no longer availability. It’s clarity.
This is a guide to the best men’s underwear right now — not as a trend report, but as a considered edit of what actually works.
Best Running and Performance Underwear
For movement, distance and anything involving sweat, performance matters more than aesthetics.
Reebok
Reebok’s running briefs sit at the accessible end of the category, but still deliver on moisture control and support, particularly for shorter sessions or gym work.
Patagonia
Patagonia’s Sender Boxer Briefs take a more sustainable approach, using recycled materials without compromising performance. They feel considered rather than overly engineered.
Path Projects
Path Projects have become something of a cult name among runners for good reason. Their Lynx PD range is lightweight, technical and designed to eliminate friction over long distances.
Best Gym and Training Underwear
Gym underwear sits in a slightly different category. It needs to move with the body, handle heat, and avoid distraction during training.
Under Armour
Under Armour remains one of the most reliable names here, with quick-drying fabrics and a close, supportive fit that works well under compression gear.
Vuori V1
Vuori’s V1 boxer briefs lean softer and more lifestyle-oriented, which makes them equally suitable outside the gym.
Nike
Nike remains one of the most reliable entry points into performance underwear. Their everyday training briefs and boxer briefs combine moisture-wicking fabric with a close, supportive fit that works well across most training styles.
Best Everyday Underwear
This is where most wardrobes are decided.
Skims
Skims has changed the conversation around everyday underwear by focusing on softness, stretch and a barely-there feel under clothing. The aesthetic is modern, but the appeal is entirely practical.
Arket
Arket offers a more restrained alternative: organic cotton, clean lines and a quietly Scandinavian sensibility that prioritises longevity over novelty.
Ron Dorff
Ron Dorff brings a sharper, more tailored approach — minimal, precise, and designed with a certain European discipline.
Best Underwear for Hot Weather
Warm climates expose everything.
Fair Harbour
Fair Harbor focuses on sustainability, using recycled materials that are surprisingly breathable in heat. There’s an easy, coastal sensibility to the brand that makes sense for travel wardrobes.
Step One
Step One also performs well here, particularly for those who prefer natural-feeling softness even in warmer weather.
Saxx
Saxx’s DropTemp range is more technical, designed specifically to regulate temperature and increase airflow in high-heat conditions.
Best Luxury Men’s Underwear
Luxury underwear is less about visibility and more about feel — the kind of quality you notice only when you put it on.
Tom Ford
Tom Ford approaches it with his usual sense of drama, using silk and satin finishes that feel closer to eveningwear than basics.
Derek Rose
Derek Rose sits firmly in the heritage camp, producing classic boxer shorts with exceptional fabric quality and a very traditional sense of refinement.
Sunspel
Sunspel is perhaps the most quietly consistent of the group, known for its cotton jersey and long-standing focus on British craftsmanship.
Hector and Ajax
Hector & Ajax offer a more contemporary interpretation, balancing softness with a more modern silhouette.
Best Budget Underwear
Fruit Of The Loom
Fruit Of The Loom offers reliable and comfortable underwear at an affordable price, making them a go-to choice for budget-conscious shoppers without compromising on quality.
How to Choose the Right Men’s Underwear
Before getting into brands, it helps to understand what actually matters, because most men choose underwear based on habit rather than function.
Fabric is everything
Cotton remains the classic for a reason: it’s breathable, reliable and familiar. But it is no longer the only option worth considering.
Modal has become a quiet favourite for its softness and drape. Bamboo offers breathability with a more sustainable angle. Technical blends — often used in sportswear — are designed to wick moisture and move with the body.
The best wardrobes tend to include more than one.
Fit changes everything
The three main silhouettes each serve a purpose.
Briefs offer support and minimal fabric. Boxers are loose and relaxed, better suited to sleeping or warmer climates. Boxer briefs sit somewhere in between, which is why they’ve become the default for most men.
There is no correct answer, only context.
Function matters more than branding
Waistbands, seams, pouch construction — these details determine whether underwear disappears on the body or becomes something you adjust throughout the day.
Fabric Guide: What Actually Matters
Understanding fabric helps make sense of everything else.
Cotton is dependable and breathable, ideal for daily wear. Modal introduces softness and movement, making it feel more refined on the body. Bamboo offers a natural lightness and improved airflow, particularly useful in warmer months.
Synthetic blends are designed for performance, prioritising moisture control and stretch over texture.
Most wardrobes benefit from a combination rather than a single choice.
Frequently Asked Questions
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Boxer briefs tend to offer the most balanced combination of support, comfort and versatility for everyday wear.
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Modal and bamboo are generally considered the softest and most breathable, particularly for long hours of wear.
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Most people replace underwear every six to twelve months depending on wear, fabric quality and elasticity.
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Moisture-wicking synthetic blends with supportive construction are best suited for training and high-intensity movement.
Underwear rarely gets the attention it deserves, but it quietly defines how everything else feels.
The best pairs don’t announce themselves. They disappear completely, leaving only comfort, ease and the sense that your clothes are sitting exactly as they should.
In that sense, upgrading your underwear isn’t really about fashion at all. It’s about getting the fundamentals right — which, more often than not, is where good style actually begins.