25110530This 5 4 sleeve T shirt is made from Theo Alpha material, a specially structured fiber with moisture wicking and quick drying properties, and uses a slightly thicker pique fabric for the inner layer. The back collar is high and the front neckline is designed to resemble a T shirt, creating a clean neckline when worn under an outer layer. As this T shirt is designed to be worn under an outer layer, it features simple embroidery on the center front.