This Tailwalk performance shirt is extremely comfortable and makes a huge statement. This Serious Fishing shirt keeps you dry and protects you from the sun at the same time!Tailwalk's Cool-N-Dry moisture wicking micro-mesh shirts draw sweat away from the skin through capillary action and allows it to evaporate far more quickly than other materials. They're 100% microfiber (4 oz.), so they feel very light and soft like cotton while providing UPF 40 sun protection -- perfect for a day in the boat. They are loose fitting yet durable.