To use the Women's Intraknit Bikini, simply put it on like any other underwear. It's perfect for daily wear, exercise, or any activity. When it comes to care, it's best to hand - wash it in cold water with a mild detergent. Avoid using bleach or fabric softeners as they may damage the Merino wool. After washing, gently squeeze out the excess water and lay it flat to dry. Don't wring it out or put it in the dryer. With proper care, this bikini will last you a long time and keep you comfortable every day.