This classic long-sleeve flannel shirt features a warm, rustic brown-gray-navy plaid pattern with a soft brushed texture achieved through sand-washed (磨毛)工艺 for enhanced comfort and cozy wear. Made from 100% cotton (as indicated by the '100%棉' tag), it offers breathability, durability, and gentle skin-friendliness—ideal for autumn and winter layering. The shirt includes a standard pointed collar, front button closure with silver-tone metal buttons, two chest patch pockets with buttoned flaps, and a clean hemline. Its relaxed yet tailored fit suits casual daily wear, outdoor activities, or smart-casual layering under jackets. The fabric’s brushed surface provides subtle warmth without bulk, making it versatile for office-casual settings or weekend outings. The model number '3211#' suggests a standardized production line, common in mass-market apparel. No visible brand logo is present on the collar label (only small unreadable text), confirming it as an unbranded or generic design product.