GUC with natural variations in the fabric (linen) Color: Deep Navy Say hi to relaxed, laidback luxe. Throw on this collared short sleeve with anything to level up a day-to-day fit. The boxy cut will pair with our linen shorts or pants to create your dream resort-life look. Our linen is made from 100% European flax, which is more sustainable and less resource-intensive to grow. Linen is the ultimate year-round fabric because it's breathable and naturally heat-regulating.