To use this open - back teddy, simply put it on like you would with any lingerie. It's designed to fit comfortably, but be sure to check the sizing tab above to find the right size for you. When it comes to maintenance, always hand wash it gently and let it drip dry. Avoid using harsh detergents as they may damage the fabric. This imported teddy is from Coquette, so enjoy wearing this stylish piece!