All Knix bras (with the exception of the Longevity Bra) are made with bonding technology that creates a comfortable seamless fit and solid support without using an underwire. Most of our wire free bras are made of a nylon and spandex blend.

For the specific fabric content, please refer to the dropdown on the product’s page under “Fabric and Care". Any metal hardware on the bra is nylon coated iron.

Washing your wireless bra shouldn’t be complicated, so we designed our products to be super easy to wash and care for. For best results, machine wash on cold with mild detergent in a wash bag, and lay flat to dry. That’s it!

If you are looking for a high impact, full coverage bra, our Catalyst Sports Bra cannot be beat. We recommend checking out the Front Zip style - a customer favorite for comfort and support!

More generally, you will need to determine the end use of the bra, for example:

For a sports bra, we recommend the Catalyst or Front Zip Catalyst.

For your everyday bra, our Revolution Bra and WingWoman Bra include sizes up to H Cup.

If you are looking for adjustability, the Evolution Bra, Padded V-Neck Bra or WingWoman Bra.

We recommend scheduling a Virtual Fitting with a Knix Expert or consulting with a team member in-store.