Orvis Flannel Blue Mens Size Large Heavy Weight Flannel The Orvis Flannel in Blue is a heavyweight men's shirt in size large, perfect for casual occasions during the winter, fall, or spring seasons. Made from cotton flannel with a plaid pattern, it features a collared neckline, long sleeves, and a button closure. This button-up shirt from the brand Orvis has a regular fit and is machine washable, making it a versatile and comfortable option for outdoor-themed wardrobe choices.