This Brooks Brothers half - zip is perfect for everyday wear, whether you're at work or out for a casual meeting. It's designed for men who value style and comfort. The mid - layer stretch fabric makes it suitable for different seasons. It's an 8 - ounce piece made of 76/22/2 polyester/rayon/spandex double - knit. With a cadet collar and faux horn buttons, it offers a classic yet modern look.