Underwire Bras vs. Wire-Free Bras: Compare and Contrast

Underwire Bras vs. Wire-Free Bras: What's the Difference?

An underwire bra, or a wire-free bra? I say you should have both. But, understand each of these bra types has their pluses and minuses.

One way to compare/contrast an underwire to a wire-free bra is to think about your feet wearing shoes versus socks. Your feet conform to the shape inside the shoes (like an underwire bra). Whereas socks primarily conform to the shape of your feet(like a wire-free bra).

Benefits of Underwire Bras

Let’s first talk about underwire bras.

Most women today are looking for a lifted, round, and slightly separated bustline shape. This is best accomplished with an underwire bra.

Support, Shape and Separation

The primary benefits of underwires are:

great breast support,

a more defined breast shape

separated breast cleavage

So, underwires optimize your bustline line for its best possible appearance under clothing.

And, because underwires are strong, bras with underwires can be designed with less breast coverage to look lighter on your body and hide beneath low neckline clothing.

Underwire Bras Require a More Exact Fit

Underwire bras, however, require a more exacting fit if they are to be comfortable. This is where women get discouraged. When a woman’s body shape changes, so does her bra size. Rather than reassessing her bra size, a woman will simply settle for the comfort of a wire-free bra which has a much more forgiving fit. The fit is “good enough” while being comfortable.

Benefits of Wire-Free Bras

Wire-free Bras

Comfort and a More Forgiving Fit

Wire-free bras, also known as soft cup bras are made entirely of fabric and thus their greatest benefit is comfort. Their fit is less exacting so the ability to find one that will fit and be comfortable is easy. Therefore, many underwire bras come in t-shirt sizing like Small, Medium, large etc.

How Wire-Free Bras Affect Lift, Shape and Cleavage

Breast lift and shape are more relaxed in a wire-free bra. They also require more coverage and a taller center panel in order to be supportive. The center panel usually does not sit flat between the breasts, so cleavage is not defined, thus a ‘mono-boob look can appear.

That said, a wire-free and make-up free combination while lounging can’t be beat. So, I feel every woman should own at least one comfortable wire free bra.

Underwire vs. Wire-Free Bra Fit Compared

Differences Illustrated

To illustrate the differences, here are some comparisons. Many manufactures will design a wire-free version of a popular underwire bra style. As you can see, the center panels are taller and not resting on the sternum (model should lean forward in each example to show this), the breast coverage is more, and the breast shape is less lifted and defined.(show a side view comparison)

Should You Choose an Underwire or Wire-Free Bra?

So if you only wear underwire bras, consider a wire-free bra for relaxing, and possibly sleeping. And, if you only wear wire-free bras, taking the time to find your exact size will pay off in finding a bra that flatters your bustline and will probably make you look thinner.