Wouldn't it be great if warm innerwear also had built-in cups? "We've created a white top that fulfills that wish. This long-sleeved innerwear, made with moisture-absorbing and heat-generating material, is perfect for autumn and winter, and I have a feeling you'll become addicted to it." The neckline has a stylish design that looks good even when visible, making it perfect for layering. Once you experience the comfort of not needing underwear, you might never want to go back!