Patagonia - Women's Live Simply Bra

You'll never want to take it off. Simple and minimal in design, with a smooth, soft fabric that provides low-impact support for all-day wear; best for A–C+ cups. Made in a Fair Trade Certified™ factory.
Smooth, soft 100% polyester (47% recycled) tricot fabric is gentle against the skin and has HeiQ® Mint odor control for long-lasting freshness; because it doesn't contain spandex, the fabric will last longer and has a better end-of-life solution
Racerback design adds support, while minimal fabric lessens bulk and the potential for chafing
Bonded seams reduce chafe points and provide a lighter feel
Low-impact support that's best for A–C+ cups, yet tested across all body types for a more inclusive fit
Minimal layers of fabric, and a single layer in high-sweat zones, improve comfort and dry times for all-day wear
Tearaway label for less bulk and added comfort
Made in a Fair Trade Certified™ factory, which means the people who made this product earned a premium for their labor