From the manufacturer's website: The 3Functions shirt was developed to make the basic broadcloth shirt more comfortable to wear, incorporating the requests of fashion director Yoshimasa Hoshiba. ・Functionality ① "Comfortable stretch that doesn't cause stress" The stretchy fabric follows the body's movements without resistance, providing a comfortable fit that doesn't cause stress. While it's a blended fabric with 4% polyurethane, it's finished with a luxurious feel that allows you to enjoy the texture and feel of cotton. ・Functionality ② "Special processing that prevents wrinkles" Broadcloth is the most wrinkle-prone shirt fabric, and the wrinkles are also noticeable. The 3Functions broadcloth shirt not only feels good to wear but also has special processing to prevent wrinkles. Even if wrinkles do form, they can be easily cared for. ・Functionality ③ "Addressing the "see-through" problem of broadcloth" Even high-quality broadcloth shirts often have the problem of "see-through." Because the cotton yarn is woven at a high density, the inside of the shirt is less likely to be seen through. This versatile shirt is appealing like never before. Size: 37 There is some staining on the collar. It has been dry cleaned.