Southern Tide: Classic, Southern & Coastal Apparel Southern Tide Long Sleeve Beach Flannel Howland Plaid Sport Shirt at Southern Tide Men's Sweetgrass Plaid Beach Flannel Sport Shirt Southern Tide Beaufain Plaid Sport Shirt in Sunset Country Club Prep Southern Tide Shirts Southern Tide Blue Plaid Sport Shirt Poshmark. Introducing the Southern Tide Men's Sweetgrass Plaid Beach Flannel Sport Shirt in Merlot, an ideal choice for fall fashion. This shirt features elbow sleeves and is crafted from a blend of 54% Hemp, 44% Recycled Polyester, and 2% Spandex. Designed with a button down collar and left chest pocket, it boasts branded imitation mother of pearl buttons for a touch of sophistication. Care for this plaid staple by machine washing it cold with like colors, avoiding bleach, line drying, and using a warm iron if necessary.