This Slim-Fit Suit Waistcoat from Mango will be an asset to your formal closet. This sleeveless waistcoat features a short design, V-neck, front button closure, two pockets with flaps on the front, an adjustable buckle on the back, inner lining, and inner pocket. 68% polyester/29% viscose/3% elastane; Lining: 54% polyester/46% viscose. Color: gray