The Field Armor™ compression shirt is comprised of a poly stretch mesh chassis with DuPont™ Kevlar® and D3O® reinforcements. Designed to be worn under your normal riding apparel, it provides additional motorcycle-specific coverage. Fit: Compresssion. Material: Stretch HYDRADRY™ moisture-wicking chassis. Features: DuPont™ Kevlar® overlays. D3O® inserts. Compression fit. DuPont™ and Kevlar® are trademarks or registered trademarks of E.I. du Pont de Nemours and Company.