12oz. Heavy duty fleece 80% cotton/20% polyester YKK Zipper Designed to be tough, practical, and comfortable while maintaining the most professional appearance possible, the 1/4 Zip Men's Job Shirt tops the bar in tactical clothing. Heavy-duty 12 oz cotton/polyester fleece is both soft and durable for maximum performance and comfort, while underarm gussets provide unrestricted movability, and ripstop elbow design adds extra strength. Made with a premium YKK zipper and styled with easy access mic loops, youll never have to look further for your ideal job shirt.