Proozy offers the Reebok Men's Stretch Boxer Briefs 3-Pack in several colors (Black/Magnet/Black pictured) for $17.99. Coupon code "DN1499" cuts the price to $14.99. With free shipping, that's the lowest price we could find by a buck, although we saw them in a different color for $2 less in November. Deal ends January 18.