4.1 oz., 100% polyester Double Dry front. 5.4 oz., 100% polyester twill interlock back; 4.1 oz., 100% polyester mesh piecing, Self-fabric collar and neck tape. Tagless. Raglan sleeves. Contrast color piecing, Anti-microbial finish fights the growth of odor-causing bacteria on the garment, wicks moisture away from the body and helps control moisture build-up. Reflective "C" logo on left sleeve.