When the temperature drops, real western wear calls for flannel. Rockmount's men's western flannel snap shirts deliver the warmth and rugged comfort you need with the authentic cowboy shirt details you expect: pearl diamond snaps, sawtooth pockets, and custom yokes. In 1946, Papa Jack Weil built Rockmount in the Rockies on the idea that a western snap shirt should be as functional as it is sharp — and our flannel cowboy shirts carry that philosophy into cold-weather dressing. Made in America from plush, heavyweight flannel in classic plaids and checks drawn from Papa Jack's original archives, these snap western shirts are built for long days outside and cozy nights in. Whether you're layering up in the mountains for a ski day or heading into town, a Rockmount western flannel snap shirt is the American western wear classic that never goes out of style. From the inventors of the snap shirt — warm, authentic, and built to last.