Polo Ralph Lauren Stretch Jersey Pullover (French Navy, Medium) Size medium has a 27" body length and a 35" sleeve length. Sleeve length is taken from the center back of the neck. Mockneck. Half-zip placket. Long sleeves. "ThermoVent" screen-printed at the left sleeve. "Polo Sport" screen-printed at the left chest. 88% polyester, 12% elastane.