At the end of every summer for the last five years, we’ve sourced the thickest, puppy-soft Portuguese chamois and produced a new run of one of our absolute favorite garments. We're excited to introduce the Sierra Shirt — our tailored-for-you answer to the classic Men's Yosemite Shirt. From half dome climbs and s’more roasting, to backyard chores, this is the shirt you’ll reach for again and again. 9-oz. 100% cotton flannel chamois. Custom milled for TS. Single needle construction with French seams. Two flap chest pockets. Unbreakable Japanese urea buttons. Lockstitched buttons and button holes. True to size. Buy your normal TS size. No pleats for easy ironing & clean lines. Wash cold and tumble dry low. Proudly made in Portugal.