BLACK. RSQ Button Sweater Vest. This ribbed button sweater vest offers a chic layering option with its stylish v-neckline and modern high-low hem. The ribbed texture adds a cozy feel, while the button-front design lends classic appeal. Perfect for layering over shirts or wearing alone, this versatile vest is a must-have for adding warmth and style to any outfit. 72% Rayon, 28% Polyester. Machine wash. Imported.