Polo Ralph Lauren Relaxed Fit Jersey Crew Neck T-Shirt (P351RL). The Polo Ralph Lauren Relaxed Fit Jersey Crew Neck T-Shirt P351RL is tuck-in length and tagless. Tee has relaxed styling, short sleeves, crew neckline, and jersey knit. Polo Ralph Lauren's Relaxed Fit Jersey Crew Neck T-Shirt is made of cotton.