Costco offers its members the 32 Degrees Weatherproof Men's Short Sleeve Polo in four colors (Gray pictured) for $7.99 with free shipping. (Non-members must pay a 50-cent surcharge.) That's the lowest total price we could find by $2. It's available in regular sizes from S to XXL and tall sizes from L to 3XL, although not in all size/color combinations.