J Crew Flannel Shirt Large Classic Red Blue Plaid Slim Button Up Pocket Outdoors The J Crew Flannel Shirt in size Large features a classic red and blue plaid pattern, making it a versatile and stylish addition to any man's wardrobe. Made from comfortable cotton flannel, this slim-fit button-up shirt includes a collared neckline, long sleeves, and a convenient pocket detail. Perfect for outdoor activities or casual everyday wear, this shirt showcases a colorful and classic theme that is both timeless and on-trend.