From underwire to wireless: How intimates are evolving for modern comfort

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From underwire to wireless: How intimates are evolving for modern comfort 

Few garments are as personal as a bra, and for a long time, women largely accepted whatever discomfort came with wearing one.

That trade-off is changing, with wireless bra sales climbing 22% year over year as consumer demand for comfort continues to reshape the intimates market. For the women behind those numbers, the clothes closest to their bodies are finally being held to a higher standard.

Felina examines how intimates are evolving for modern comfort.

The Shift Toward Comfort-First Fashion

Long before the world shut down in 2020, the intimates industry was already feeling pressure from women who had grown tired of choosing comfort over support or style over wearability.

Research from the NPD Group captured that tension as far back as 2016, when chief industry analyst Marshal Cohen observed that women's expectations around comfort had moved "from slightly to completely."

The pandemic brought that pressure to a head. With offices closed and routines upended, women across the country traded structured undergarments for softer, more forgiving options, and the shift stuck. Guardian contributor Yasmina Floyer spoke for many when she wrote, "We may have returned to work, but the idea of returning to our underwires feels like a step too far."

For younger women, the break proved even more decisive. Gen Z consumer Stephanie Jade Lewis stopped wearing underwire bras entirely and found that going wireless changed her relationship with getting dressed altogether.

"I don't even know I'm wearing anything," Jade said. "I used to be so excited about coming home and getting my bra off. Now, it's not even a thought." That kind of response was playing out across the broader apparel market, where softer tailoring, stretch fabrics, and relaxed silhouettes were all moving in the same direction.

As Lauretta Roberts, co-founder of fashion news site theindustry.fashion, put it, "Fashion doesn't exist in a bubble; it looks at how people are living, what they're consuming. People's lifestyles change, and fashion has to respond to that."

Why Underwire Is No Longer the Only Option

For decades, underwire was treated as a nonnegotiable. The rigid, U-shaped channel sewn beneath each cup was considered the only reliable way to lift, separate, and support the breast, particularly for women with fuller figures who needed a bra that could carry real weight throughout the day.

The assumption made a kind of intuitive sense. Structure meant support, and support meant wire. What that assumption left out, however, was the role of the band.

Research has shown that the band, not the wire, is responsible for the majority of a bra's lifting and support, with the wire primarily contributing to shaping and separation. That distinction matters because it opens the door to rethinking what support actually requires.

Ashleigh Cunningham, a 32C who stopped wearing underwire bras during the pandemic, told The Guardian she simply found it more comfortable to move away from a full underwire altogether.

For many women, that personal experience exposed a gap between what they had been told they needed and what actually worked for their bodies. The idea that support and rigidity are the same thing is now being reconsidered, not just by consumers, but across the intimates industry.

The Technology Behind Modern Wireless Support

Reconsidering what support requires has drawn attention to how much the construction of a bra itself has changed. Instead of depending on a single rigid component to create lift and separation, newer wireless designs spread that responsibility across molded cups, reinforced side panels, and bands built to stabilize the entire bra across the torso.

Wider shoulder straps also work as part of that larger structure, continuing the same system of support rather than functioning on their own. Research from Texas A&M University reinforces this, noting that fabrics with controlled stretch and recovery help maintain stability while adapting to movement.

Support today is created through coordination across every part of the bra, with structure built into the design itself rather than added through a wire.

Comfort Without Compromise

Perhaps the most immediate change women notice when switching to wireless is the absence of the discomfort they had come to accept as normal.

The digging, the pinching, and the red marks left behind at the end of the day were not inevitable features of wearing a bra. They were a design problem. Without a rigid wire pressing against the ribcage, wireless bras distribute weight more evenly, allowing the body to move naturally throughout the day without resistance.

Silvia Campello, former general manager of Cosabella, described the difference as bras that offer "that free feeling of being supported and covered but not squeezed." For consumers who spent years treating discomfort as the price of support, that distinction carries real weight.

Why Larger Bust Sizes Are Part of the Conversation

Any discussion of wireless innovation feels incomplete without including women who have historically been told that support requires an underwire, especially those with fuller busts.

For years, that assumption narrowed the category and left many consumers with fewer options that felt both stable and comfortable enough for all-day wear. However, design improvements have begun to change that, allowing wireless bras to deliver shaping and security in ways once associated almost exclusively with rigid construction.

Jené Luciani Sena, author of “The Bra Book,” told Byrdie that wireless bras can be just as supportive as underwire options for women of any size, adding that the fundamentals of fit remain the same regardless of cup size, from a secure band to cups that fully encase the breast.

The category is expanding not by lowering expectations, but by finally meeting them more broadly.

Adaptive Design and the Future of Intimates

A clearer view of how bras are being designed today reveals how quickly intimates are evolving to meet a wider range of needs. Rather than relying on fixed sizing alone, many wireless styles now incorporate stretch-responsive fabrics, seamless construction, and hybrid materials that adjust more naturally as the body moves and changes throughout the day.

That same thinking is influencing how bras are worn, with designs that account for different routines, levels of activity, and moments of ease or recovery, whether that means a morning workout, a full day at the office, or simply winding down at home. Fit is becoming more personal, shaped not just by measurements but by how a bra performs and adapts over time.

What This Signals About Consumer Expectations

For many years, underwire bras defined what support was expected to look like. Today, that expectation is expanding as more women recognize that structure does not have to come at the expense of comfort. Wireless designs are increasingly meeting those expectations by offering stability that feels wearable across the full rhythm of a day, not just in moments of stillness.

Michelle Cordeiro Grant, a former senior merchant at Victoria’s Secret, has noted that women often wear a bra for “14 hours” a day, a reflection of how closely comfort and practicality are now linked in everyday clothing decisions.

As these preferences continue to guide design, wireless bras are helping signal a broader change in how support is understood, one shaped less by tradition and more by how women actually live.

This story was produced by Felina and reviewed and distributed by Stacker.