Blue Mountain Red, Blue Plaid Long Sleeve Button-Up Shirt Flannel Large The Blue Mountain Red, Blue Plaid Long Sleeve Flannel in size Large is a stylish and versatile addition to any man's wardrobe. Made from soft cotton flannel, this button-up shirt features a classic collared neckline and spread collar style. The blue plaid pattern adds a touch of outdoor charm, perfect for casual or workwear occasions. With easy care features and pockets for added convenience, this shirt is a must-have for the winter, fall, and spring seasons. The Blue brand ensures quality and comfort in this timeless piece.