The RG2040 Organic Cotton Ribbed Tee Top is one dressy top: its elegant ribbed knit goes just about anywhere, dressy or casual. It's cut to stand alone with a nice pair of slacks or jeans. Its simple elegant structure belies its couture designer cut, which takes full advantage of the gorgeous silky orgaic cotton ribbed knit fabric. This top looks great on women, too, in a relaxed fit (not tight-fitted). Men's S = Women's S – M; Men's M = Women's L, etc...