Long sleeve undershirt with stand-up collar. Keeps warm and dry in cold weather. Made of soft, lightweight, quick-drying and easy-care material. Fits like a second skin. Regulates body temperature. Well suited for sports. Size(chest circumference)XSY(66cm), SY/MY(71-76cm), LY/XLY(81-86cm). Thickness 260gsm. Material 90%polyester, 10%spandex.