Taion Military V-Neck Button Down Vest in Olive. Taion's Military Line signature split zipper on both sides increases range of motion, making it easier to move around, place your hands in the lower pockets and enjoy the layering. Wear it under jackets and coats, or layer it over T-shirts, shirts, and sweatshirts for a casual look. The V-neck adds a sharp, clean touch with snap buttons.