Columbia offers its Columbia Women's Arctic Air Tunic in Purple Dahlia, Pomegranate, or Black for $45. Coupon code "AFFHOLIDAY" drops it to $20.25. Plus, Greater Rewards members bag free shipping. (Not a member? It's free to sign up.) That's $25 off list and the lowest total price we could find. It's available in sizes XS to XL. Deal ends December 5.