5-ounce, 60% Polyester/40% Cocona® 37.5® Polyester - Relaxed Fit - Fastdry® with 37.5® Technology dries faster to keep your body at its ideal temperature - Rugged Flex® technology for ease of movement - Fights odors - Tagless neck label - Smooth flatlock seams - Left chest with Carhartt heat transfer label - Force Extremes® labeling on left sleeve -