From Patagonia

This athletic, racerback bikini top offers supportive comfort in the lineup or on the beach. Crafted from soft, stretchy and durable 83% recycled nylon/17% spandex (solids), 83% recycled polyester/17% spandex (prints) or 80% recycled nylon/20% spandex (jacquards). Made in a Fair Trade Certified factory.

• Soft, stretchy and durable body fabric is made with 83% recycled nylon/17% spandex solid jersey, 83% recycled polyester/17% spandex printed jersey, or 80% recycled nylon/20% spandex solid jacquard; the lining is a swim-specific 88% recycled polyester/12% spandex jersey
• Pull-on racerback design is supportive and has an open back for comfort, security and ease of movement
• Flattering crossover styling at the bust
• Covered-elastic back straps lie flat on the skin and wont tangle with zippers when worn under a wetsuit
• Soft, removable, side-entry cups
• Made in a Fair Trade Certified factory, which means the people who made this product earned a premium for their labor