The TOPO Designs Mountain Shirt in Bone/Multi is a plaid flannel inspired by western heritage and built for all-day comfort. Made from 100% organic cotton 5 oz midweight twill flannel, it delivers the perfect balance of softness, warmth, and durability. Designed with a relaxed fit for easy layering, it features oversized BDU button closures, dual flap chest pockets, and subtle western-inspired details that make it as functional on the trail as it is stylish in town.