Thank you for viewing! This is a "night bra," a lingerie item designed to prevent the sideways movement of your bust while you sleep (^^♪ It can also be used as a relaxing bra during the day, or as a sports bra for yoga and other activities, making it suitable for various situations! The size can be adjusted with the hooks on the side under the bust, and the material is soft and stretchy, which is very popular. Rose / White M size set Please refer to the images for sizing. (Although it is only listed up to D cup, it can also be used by those with E cup or larger. I myself use M size and I am E65 or E70) ----------------------------------------------------------------------------------------------------- Other colors available are Purple / Light Pink / Light Blue / Beige / Black! All sizes are available. * The smallest size, S, is also available. We can also accommodate different sizes, so please contact us if you have any requests. Material: 90% Nylon, 10% Spandex Sports bra, yoga wear, new night bra, maternity wear, maternity bra, bust care * Body types vary from person to person, so these are only reference sizes.