REI Garage continues to offer the Columbia Men's Woodring Strait EXS Shirt in Fossil for $18.73. Opt for in-store pickup to dodge the $5.99 shipping fee. That's $21 off list and tied with last month's mention (which included more color options) as the lowest price we've seen. It's available in sizes M to XXL.
Of note, REI members can apply coupon code "WINTER20" to drop an extra 20% off. Coupon expires November 21.