From Patagonia

Our classic, full-coverage bikini bottoms are made of 83% recycled nylon/17% spandex (solids), 83% recycled polyester/17% spandex (prints) or 80% recycled nylon/20% spandex (jacquards). Hidden elastic at the waist and leg openings provides secure comfort and a flattering fit in and out of the water. Fair Trade Certified sewn.

• Soft, stretchy and durable body fabric is made of 83% recycled nylon/17% spandex (solids), 83% recycled polyester/17% spandex (prints) or 80% recycled nylon/20% spandex (jacquards)
• Straight, across-the-hip fit with a full-coverage seat
• Hidden seams and elastic at the waist and leg openings for secure comfort and a flattering fit
• Fair Trade Certified sewn, which means the people who made it earned a premium for their labor