READ two small holes one front near shoulder see pics and review measurements provided 

The St John Caviar Blazer in size 12 is a sophisticated and stylish one-button longline suit jacket perfect for formal or business occasions. Made from a luxurious wool blend knit fabric with a bit of stretch, this black blazer features a notch lapel and a single-breasted front closure. Designed in the United States by the renowned brand St. John, this blazer exudes a classic and timeless elegance, making it a versatile and essential addition to any wardrobe for the winter, fall, and spring seasons.