4-ounce, 100% polyester jerseySun Defender? UPF 50+ UV protectionCarhartt Force? works harder to fight sweat, dry fast and stop odorFastDry? technology wicks away sweat to keep you coolTagless neck labelSelf-fabric collarThree-button placket with dyed-to-match buttonsUtility loop at placket endOpen sleeves to increase range of motionCarhartt label sewn on left hemDyed-to-match Carhartt logo on left sleeveRelaxed fit