Revamp a tired wardrobe with a new men's T-shirt or button-up dress shirt from top-name designers, including Gucci, Medardo, and Under Armour. If the special man in your life has a birthday or other special day coming up, order a cotton polo shirt that he can wear to the office or out for a casual meal. Overstock.com has short- and long-sleeved shirts made from cotton, polyester, and other fibers to wear all year round. Choose a graphic T-shirt to announce a favorite sports team or a solid-colored shirt to complement any pair of pants. Dry-cell shirts keep sweat under control when you work outdoors, while a fleece shirt protects you from the elements on a cool day. To show off a buff physique, select a compression or body shirt.