Proozy offers the adidas Men's Puremotion Textured Stripe Polo Shirt in several colors (Solar Blue/White pictured) for $18.99. Coupon code "DN16" drops it to $16. With free shipping, that's $3 under our August mention and the lowest price we could find by $14. (We saw two shirts for $30, or $15 per shirt, in November.) It's available in select sizes from S to 3XL. Deal ends January 8.