Debunking 5 Myths About Underwired Bras

Underwired bras. Love them or hate them; there’s no denying they spark a lot of debate. Over the years, countless myths about underwired bras have left many women second-guessing their lingerie choices. Are they uncomfortable by nature? Do they really provide better support? And the most alarming question of all: could they actually cause breast cancer?

It’s time to set the record straight. Many of these fears stem from outdated information, poor-fitting bras, or simple misinformation that refuses to fade. 

The truth is, when fitted correctly, an underwired bra can be one of the most supportive, comfortable, and confidence-boosting pieces in your wardrobe.

So, if you’ve ever wondered whether underwires are your friend or foe, keep reading. 

Myth #1: Underwired Bras Cause Breast Cancer

According to the National Breast Cancer Foundation, there is zero scientific evidence linking underwired bras to breast cancer. None. Zilch. The myth likely originated decades ago when concerns about tight clothing and circulation were misinterpreted and spread as fact. 

But here’s the truth: breast cancer develops due to genetic and environmental factors, not the type of bra you wear.

This myth likely persists because underwired bras can sometimes be uncomfortable, especially if they don’t fit well. That discomfort, paired with a lack of widespread understanding of breast cancer causes, has fueled unnecessary fear. 

At the end of the day, choosing an underwire or wire-free bra should be about comfort and preference, not fear.

Myth #2: Underwired Bras Are Always Uncomfortable

One of the biggest myths about underwired bras is that they’re inherently uncomfortable. In reality, most discomfort comes from wearing the wrong size. If your underwire is poking you, your cups gape, or your band rides up in the back, chances are you need a different size or style. A properly fitted underwired bra should feel supportive, not suffocating.

That’s why choosing high-quality, well-designed bras, like JulieMay’s Debbie bra, can make all the difference. Designed with hypoallergenic organic cotton and silk, it offers breathable comfort without compromising on support. The adjustable back is great for those trying an underwire bra for the first time, as it can be a great option to help with fitting. 

Ai L. from Australia shares: "I just love the shape of this bra; it fits SO well, super comfortable all around the cup and the straps, and best of all it looks very attractive! Very happy customer; this is my second bra from Julie May and I could not buy bras from anywhere else now.

The materials and quality are just top notch." 

A well-fitted underwire bra should feel secure but not restrictive, offering the right balance of lift and comfort. And if underwires still aren’t your thing? Wire-free bras can be just as supportive. 

The key is finding what works for you, not suffering through the wrong size!

Myth #3: Underwire is the Only Supportive Part of a Bra

If you’ve ever thought that underwires are doing all the heavy lifting in your bra, you’re not alone. But the truth is, underwires are just one piece of the support puzzle (and not even the most important one).

A well-fitted bra relies on multiple elements for support. The real MVP is the band. It’s responsible for up to 80% of the support, while the underwire and straps provide additional shaping and lift.

So, if your bra isn’t offering the right support, check your band fit. It should sit snugly around your ribcage without riding up or digging in. Straps should balance the lift, not bear all the weight. 

When everything works together, you get true, all-day comfort and support whether you’re wearing an underwire bra or not!

Myth #4: Sleeping in an Underwired Bra is Harmful

Let’s set the record straight: sleeping in an underwired bra won’t harm your health but it could cause skin issues. Wearing an unwashed bra can trap oil, sweat, and bacteria, potentially leading to skin irritation or breakouts both during the day and while you sleep.

But if your bra fits well, there’s no medical reason why you can’t wear it to bed. Some women find sleeping in a bra helps with support, especially for larger busts or post-surgery recovery. Others prefer the freedom of going braless. 

If you prefer sleeping in a bra, we suggest wearing a non-wired style that moves with your body, such as our Georgia bra or our supportive, non-wired skin tone bras, for comfort reasons.

Myth #5: Underwired Bras Are Unsafe for Breastfeeding

Breastfeeding moms have enough to worry about. Let’s not add underwired bra myths to the list! 

Some believe underwire bras can block milk ducts or harm lactating breasts, but the truth is, it’s all about fit. A poorly fitted underwire bra may cause some discomfort, but a well-fitted one is entirely safe. For ultimate comfort, many breastfeeding moms opt for soft-cup nursing bras or flexible underwire styles designed to accommodate fluctuating breast sizes. 

The key? Avoid anything too tight. When chosen correctly, an underwire bra can offer the support you need without interfering with your breastfeeding journey.

Quick Tips to Guarantee Comfort with Underwired Bras

Love the look of an underwired bra but are worried about comfort? Here’s how to make sure your bra feels as good as it looks:

• Get professionally fitted: Your size can change over time, so regular fittings are a game-changer. If you can’t get professionally fitted in person, check out our guide for finding the perfect fit at home.
  
• Choose high-quality materials: Soft, breathable fabrics make all the difference.
  
• Replace your bras regularly: Even the best bras can start to lose their shape after 6-12 months of regular wear. Don’t forget to update your lingerie wardrobe from time to time.
  
• Find what works for you: Whether it’s a balcony, plunge, or t-shirt bra with an underwire or without, comfort and confidence should always come first. Try different styles to determine what bra works best for your breast shape to determine the best fit.

The right fit = the right support. You deserve both! Explore JulieMay’s full collection of lingerie that will leave you feeling good in the skin you’re in. Remember, clothes are made to fit you, not the other way around.