Columbia offers its Columbia Men's Rugged Ridge Long Sleeve Crew in several colors (Mystery Heather pictured) for $19.90. Coupon code "COLUMBIA60" drops it to $15.92. Plus, Greater Rewards members receive free shipping. (Not a member? It's free to sign up.) That's the lowest price we could find by $12. It's available in sizes S to XXL. Deal ends October 2.