7.7-ounce, 89% recycled polyester/11% spandex interlock knit. Moisture-wicking. UPF rating of 50+. Self-piped zipper placket. Shoulder piecing detail. Dyed-to-match, recycled, reverse coil zipper with silicone-tipped drawcord pull. Self-turned cuffs. Straight drop tail hem. Side vents. Tag-free label.