Hey there! To wear this awesome women's bodysuit, just slip it on like you would with any other one - piece. It's a great choice to pair with your favorite jeans for a stylish look. When it comes to cleaning, use your washing machine on a cold setting and make sure to wash it with similar colors. Don't use bleach as it might damage the fabric. After washing, you can tumble dry it on a low setting. But remember, don't iron it and avoid dry - cleaning. The size guide gives you a good idea of the measurements when the bodysuit is laid flat, but keep in mind that the actual product might be a bit different, up to 1 inch. So, enjoy wearing this trendy and comfortable bodysuit!