View The Gallery Bless Up Trail Button Up Shirt 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.