For a successful hunt, an effective layering system must work. The Avery Performance Layering Fleece Button Down Hunting Shirts offer super soft next-to-the-skin comfort and are extremely quiet. Made of polyester fleece, they wick and dry quickly. All shirts are cut full and the two way stretch provides freedom of movement. To simply say that these shirts are warm doesn't give them justice. The natural warmth trapping ability of 400 gram micro-fleece makes these shirts the ideal choice for shaving off winter chill.