A flexiwire is a thoughtfully designed flexible wire that gives the shaping and support of a traditional underwire — without the rigid constriction. Originally popular in maternity and nursing bras, flexiwires are gentle on delicate breast tissue, providing superior support and lift for pregnant and breastfeeding women.

In the Evolve range, flexiwire bras are designed for any woman whose body has changed — whether post-baby, post-nursing, or simply seeking extra comfort and shaping. The flexible wire moves with you, offering all-day comfort, lift, and freedom of movement, making it an ideal choice for women who want the benefits of an underwire without the discomfort

Hotmilk's range of flexiwire bras offers styles to suit every body and occasion. For maternity and nursing, our bras provide gentle support and lift while being kind to delicate breast tissue. Smooth T-shirt nursing bras like Forever Yours and Obsession are perfect for everyday wear, while full-coverage options such as Temptation and True Luxe give maximum support and structure. For special occasions, plunge styles like Lunar Eclipse and Warrior Plunge combine a flattering shape with comfortable wear, making nursing effortless.

For women beyond nursing, the Evolve range delivers bras designed to move with your changing body. Styles like Refined and Effortless provide lift, smoothing, and all-day comfort in a wirefree or flexiwire design, helping you feel confident, supported, and celebrated at every stage.

The Evolve range is designed to be worn anytime, delivering lift, smoothing, and all-day comfort for post-baby bodies or women simply seeking flattering, flexible support. With a variety of colors and sizes, it’s easy to find the perfect fit for your body shape and style.

We also recommend wearing flexiwire bras during pregnancy, but waiting a few weeks after giving birth before resuming flexiwire styles, as breasts can be engorged and sensitive. During this period, flexible wires may cause discomfort or interfere with the natural flow of milk. A well-designed flexiwire bra should feel comfortable from the moment you put it on — no breaking in required. If your chosen style feels too tight or uncomfortable, it’s best to try another option.

"Many women prefer underwire fashion bras and are confused when told these are not recommended during pregnancy or lactation. The reason for this is, once again, your changing breast shape. When breastfeeding, the breasts can increase and decrease in size during the day, as milk is produced and removed. Retained fluid in late pregnancy can also cause the breast to swell. Although only a slight change in size is occurring, a rigid underwire may put pressure on the breast when it is fuller. Such pressure can lead to blocked milk ducts or mastitis and it is for this reason inflexible underwire bras are not recommended. However, there are nownursing brasavailable that have flexible metal support, similar to an underwire, designed to flex and change position with your changing shape. These are less likely to cause problems."