Tailored Silhouette: The Slim Fit specification cuts close to the body, featuring higher armholes, a tapered waist, and narrower sleeves compared to standard classic cuts. Flex 3 Engineering: Utilizes a highly flexible 4-way stretch fabric blend combined with elastic gusseted armholes to ensure maximum arm mobility without the fabric pulling tightly across the back. Expandable Collar: Built with a specialized flex-collar button tab that seamlessly expands up to half an inch for extra neck comfort throughout the day. Material Composition: Upgrades from traditional woven fabrics to a high-stretch blend containing roughly 61% Cotton, 28% Polyester, and 11% Elastane/Spandex