To use this chemise set, simply put on the chemise first and then the matching thong. When wearing, make sure the underwire cups fit properly for the best lift. As for care, it's recommended to hand - wash this set in cold water with a mild detergent. Avoid using bleach or harsh chemicals as they can damage the lace and mesh. After washing, gently squeeze out the water and lay it flat to dry. Don't wring it to prevent distortion. Store it in a cool, dry place away from direct sunlight to keep the colors vibrant and the fabric in good condition.