Nike offers its Nike Men's Lunar Force 1 Duckboot Boots in several colors (Dark Obsidian pictured) for $84.97. Coupon code "BONUS20" knocks it to $67.98. Plus, Nike+ members receive free shipping. (Not a member? It's free to join.) That's the best price we could find by $55. They come in select sizes from 6 to 10.5. Deal ends May 16.