This is a white, long-sleeved, fleece-lined dress shirt. It can be used in business settings, formal occasions, or as a school shirt. It's quite warm! I'm selling it because the size was smaller than expected when I tried it on (for a 155cm child). I don't think it's the same as a men's M size. Made in China, so the tailoring is not perfect and there are some loose threads. Please consider this if you are interested. [Size] M (165) [Color] White [Condition] Like new Thank you.