Roark Run Amok Bless Up Trail Shirt Size Medium Black White (appears Charcoal Gray) Excellent preowned condition, no flaws! The Bless Up Trail has you completely covered from the trail to the bar for an icy post-run cerveza. Don't miss a step while bringing your style into the mountains. Built with a 4-Way stretch, microperforated, nylon Tactel/ poly blend, and rubber buttons, this technical button up is one of our most versatile garments in the Run Amok Collection.