USMC Desert MARPAT Defender FR Combat Ensemble Shirt - Sz. Large-Regular 65% Rayon 25% Para-Aramid 10% Nylon. Modacrylic Protex T (torso). 83% Modacrylic 7% Polyester 5% Spandex 5% Silver Enhanced X-Static DRIFIRE knit torso - reduces core body heat, flame resistant, prevents bacteria growth, and provides odor control. All thread, zippers and loop components are flame resistant. Comfortable moisture wicking, fast drying torso. Reinforced mandarin collar and zipper. Contoured, reinforced elbows. Raglan sleeves for enhanced range of motion. Angled sleeve pockets with hook and look panels for quick access.