The New Masculinity — Form-Fitting Gym Wear, Body Confidence and the Rise of the Men's Bodysuit

Men are thinking differently about their bodies. The gym is fuller than ever, fitted clothing is everywhere, and a new generation of men's underwear and base layers is meeting that shift head on. Here's what's driving it — and what to wear.

The New Masculinity Is Physical — and Unashamed

Something has shifted in how men relate to their bodies. Walk into any gym in any major city and you'll see it immediately — fewer oversized hoodies, more fitted base layers. Fewer men hiding, more men showing. It's not vanity. It's a cultural recalibration that's been building for a decade and has now reached mainstream.

UK gym membership hit record levels in 2024, with over 10 million active gym members according to industry data — a figure that's continued rising. But the numbers alone don't tell the full story. It's not just that more men are training. It's that the relationship between training and identity has fundamentally changed. The gym is no longer just a place to get fit. It's a practice. A commitment. A visible expression of how a man chooses to live.

And when something becomes identity, aesthetics follow. What you wear to the gym starts to matter — not out of vanity, but because the clothing becomes part of the practice itself.

Fashion Noticed First

The fashion industry read this shift early. From Prada to Versace, from high street to high fashion, the male silhouette has been moving consistently in one direction — fitted, defined, body-aware. The oversized era isn't over, but it's sharing space with something more considered. Tailoring that shows shoulders. Knitwear that follows the torso. Trousers cut to sit on the hip rather than bag at the knee.

This isn't new in women's fashion — the performance-to-lifestyle crossover has been standard for years. Lululemon didn't build a billion-dollar business by keeping activewear in the gym. Men's fashion is catching up to what women's fashion understood a decade ago: that form-fitting, high-performance fabric works everywhere, not just during exercise.

The male body, presented with confidence and without apology, has become a legitimate fashion statement. The Calvin Klein campaigns of the 1990s planted that seed — our history of Calvin Klein's iconic underwear campaigns covers exactly how that aesthetic shaped an era. What we're seeing now is that aesthetic fully matured and integrated into everyday male dressing.

Body Positivity — The Male Version

The body positivity movement, long dominated by female voices, has begun producing a male counterpart — though it looks and sounds quite different. Where female body positivity has largely been about acceptance across all shapes and sizes, the male version is more often about permission. Permission to care. Permission to invest time and attention in physical development. Permission to wear clothing that reflects that investment rather than concealing it.

This isn't the old toxic gym culture of the 1990s — the protein shakes and ego lifting and aggressive posturing. The new masculinity around fitness is more considered. Recovery matters as much as training. Sleep, nutrition and stress management are taken seriously. The physique is built patiently, maintained thoughtfully, and presented with quiet confidence rather than performance.

That quiet confidence has a dress code. And increasingly, it involves clothing that moves with the body rather than hanging off it.

The Rise of the Base Layer — and the Men's Bodysuit

Performance base layers have been part of elite sport for decades — compression tights, athletic singlets, close-fitting thermal layers. What's new is their migration from the track and the pitch into the mainstream gym, and from there into everyday wear.

The men's singlet bodysuit sits at the intersection of these two worlds. Originally derived from the wrestling singlet — a functional garment designed for unrestricted athletic movement — the modern bodysuit has been completely reimagined. Today's versions use premium microfibre rather than heavy Lycra. They're lightweight enough to wear invisibly under a shirt. They move with the body during the most demanding exercises. And they look considerably better than anything that came before.

The one persistent barrier to adoption has been the snap fastening — the uncomfortable crotch popper that made wearing a bodysuit a practical inconvenience. The STRIKE PRO Microfibre Bodysuit removes that barrier entirely. High-stretch microfibre means you simply pull it on like a brief. No popper, no snap, no fumbling. Just put it on and get on with your day — or your training session.

What High-Stretch Microfibre Actually Does

The fabric is the foundation of everything. Premium microfibre — the kind used in the STRIKE PRO range — is engineered rather than grown. Polyester and elastane fibres finer than a human hair are woven into a fabric that is simultaneously lightweight, incredibly strong, and extraordinarily responsive to movement.

Four-way stretch means the fabric moves in every direction simultaneously — crucial for the compound movements that make up serious training. A deadlift requires the fabric to extend at the hip, the lower back and the shoulder simultaneously. A pull-up demands unrestricted movement through the shoulder girdle while the torso is fully engaged. Lesser fabrics pull, bunch or restrict. Quality microfibre simply moves.

The moisture-wicking properties are equally important. Microfibre pulls sweat away from the skin and disperses it across the fabric surface for rapid evaporation — keeping you dry and comfortable even during high-intensity work. Cotton, by contrast, absorbs moisture and holds it, becoming progressively heavier and more uncomfortable as the session progresses. For a full comparison of both fabrics, read our microfibre vs cotton guide.

How to Wear It — Beyond the Gym

The STRIKE PRO Bodysuit works hardest when it's doing more than one job. In the gym, paired with shorts, it's a complete and considered training outfit — clean, minimal, nothing extraneous. Under a fitted shirt or blazer, it creates the kind of smooth, permanently tucked base layer that no vest or t-shirt can replicate. As underwear under tailored trousers, it provides full torso coverage and support without a waistband visible above the trouser line.

Available in Black, Terra and Dune — three colourways that cover every context from gym floor to boardroom. All three at £44. The Terra colourway in particular works as a standalone statement piece in a way that most base layers never achieve — worn under an open shirt with minimal styling, it's an outfit rather than just underwear.

The Bigger Picture

What we're witnessing is a genuine cultural shift — not a trend, not a moment, but a sustained change in how men understand and present their bodies. The gym is fuller. The clothing is more considered. The relationship between physical investment and self-presentation has never been more direct.

The STRIKE PRO Bodysuit didn't create this shift. But it was designed for exactly the man driving it — someone who trains seriously, dresses with intention, and doesn't want his clothing to be the limiting factor in either context. Premium microfibre, no snap fastenings, three colourways. The rest is up to you.

Frequently Asked Questions