REI Garage offers the Patagonia Atom Sling Bag in Howling Turquoise, Shock Pink, or Supply Green for $36.73. In cart, it drops to $26.73. Opt for in-store pickup to avoid the $5.99 shipping fee. That's $10 below our mention from last week, the best now by $18, and the lowest price we've seen. It features a 3-point harness, zippered main pocket, adjustable buckles, and a water-repellent finish. Deal ends September 25.