To use this Syd one - shoulder bikini top, simply put it on like a regular top, making sure the cut - out part is in the front and the solid back provides support. When wearing it, you can adjust the straps for a better fit. As for care, hand - wash it in cold water with a mild detergent. Avoid using bleach or harsh chemicals as they can damage the fabric. After washing, gently squeeze out the water and lay it flat to dry. Don't wring it or hang it up as this might cause it to stretch out of shape. When not in use, store it in a cool, dry place.