"All we can say is that we don't use cotton. Cotton sucks and causes the collar to wrinkle and shirt to shrink. We use a proprietary blend that we specifically created for movement, durability, and sweat resistance. Our shirts have the perfect amount of stretch and comfort that other button downs don't. Our shirts are completely custom cut and sew from the ground up using our measurements, patterns, buttons, tags, and more and are not print on demand."