Tommy Bahama IslandZone Palm Coast Hibiscus Border Polo Shirt in Coal. This Palm Coast Hibiscus Border Polo Shirt by Tommy Bahama features yarn dyed IslandZone performance recycled polyester with engineered jacquard stitching, and reflective marlin at back neck. This Tommy Bahama Palm Coast Hibiscus Border Polo Shirt is made of 100% Recycled Polyester.