Rebar Heat Fighter T-shirts are made of lightweight mesh with moisture-wicking and an odour-resistant finish to keep you cool and comfortable all work long. A ribbed collar provides great structure and resists slouching for an all-around easy tee to work in any time. Especially great for outdoor jobs.FeaturesGreater Arm Mobility seam construction for maximum range of motionClimateTEK smart technology regulates the bodys temperature whatever the weatherStain-release technology for easy washingFreshTek fabric finish inhibits the growth of bacterial odoursRibbed collarDroptail hemPatch pocket100% polyester3 oz lightweight mesh