The Flying Cross FX Flex Men's Long Sleeve Hybrid Shirt redefines the standard for daily duty uniforms by combining unparalleled stretch and durability with modern fit and functional enhancements to meet the rigorous demands of public safety professionals. This shirt features VaporCore Elite powered by 37.5 Technology to enhance evaporation and cooling, offers UVA and UVB protection to preserve the fabric and is designed with an athletic fit perfect for standalone wear or layering under other garments.