Beautiful back underwear, because of its special design, helps MM show a smooth and beautiful back and deeply touches MM's heart. Beauty underwear can be divided into decorative underwear and functional underwear according to its functional characteristics. There are many styles of decorative underwear with beautiful back, such as hanging neck type, Y-shaped back, hollow thin shoulder strap type and so on. The cross strap design highlights the line feeling of the back, which is sexy and beautiful, making people reluctant to look away. Especially in spring and summer, the weather temperature will not be too low or too high. Many young MM like to wear these beautiful suspenders with translucent coats. Simple lines are looming, highlighting MM's charming back curve, which is amazing. The functional back-beautifying underwear adopts the adjustable underwear mode of side folding to assist the breast, and the design of wrapping the back in a large area can smooth back fat well, so that MM also has the effect of "beautiful back".