This is a Penguin by Munsingwear Heritage Slim Fit Shirt for men in size L. It features a geometric eyeglasses pattern in white, short sleeves, a collared neckline with button closure, and a slim fit. The shirt is made of cotton, has a woven fabric type, and is machine washable. The brand is MunsingWear, and it has a classic, preppy theme with colorful accents.