Apt. 9 Premier Flex Henley Shirt Mens 3XLT Black Short Sleeve Stretch New Apt. 9 Premier Flex henley shirt in a solid black colorway. This short-sleeve top features a soft-touch stretch fabric blend of polyester, rayon, and nylon for all-day comfort and mobility. Designed with a classic three-button placket and a tag-free neck, it offers a clean, modern look suitable for casual wear or layering. The OEKO-TEX Standard 100 certification ensures the textile has been tested for harmful substances.