Proozy offers the Columbia Men's Crew Neck Short Sleeve T-Shirt in seven colors (Royal Blue pictured) for $19.99. Coupon code "AFFTEE" drops the price to $16.99. (Amazon offers a few colors for about the same price.) With free shipping, that's the lowest total price we could find for any color by $3. It's available in sizes S to XL. Coupon expires May 31.