Jos. A. Bank Knit Shirt Jacket TAILORED FIT The shirt jacket: it's the perfect layering piece when the weather can't decide what to do. This versatile garment bridges the gap between a jacket and a shirt, offering lightweight warmth on cooler days. Whether you layer it over a tee or a button-down, it's a must-have for your wardrobe. 75% POLYESTER 20% WOOL 5% OTHER FIBER MACHINE WASHABLE