An Oxford button-down shirt is a classic staple every guy should have in their wardrobe. This slim fit men's long sleeve shirt tops all others though by being made from EcoVero viscose and cotton. With a touch of stretch woven in, you've got a true winner that will take you from office hours to after hours with ease. A button-down collar keeps your look sharp no matter what your day may throw at you. Button down collar. Oxford fabrication. Chest pocket. Embroidered Penguin logo at left chest.