10-oz. 100% cotton flannel. Reinforced side gussets and two chest pockets. Triple-needle chain stitch construction. Our signature California collar. Custom painted metal catseye buttons. Lockstitched buttons and button holes. Fits true to size. Tailored fit and high armhole. Shorter tail length to be worn untucked. No pleats for easy ironing and clean lines. Wash cold and tumble dry low. Proudly made in California.