Recycled polyester and color-locking PosiCharge technology make this smooth-faced, odor-fighting, moisture-wicking tee outcompete other t-shirts.; 3.8-ounce, 100% recycled polyester with PosiCharge technology; This product's carbon footprint has been measured and reduced through a combination of preferred materials and investing in carbon offset projects though the ClimeCo Certified Product Program; Tear-away removable label; Taped neck; Set-in sleeves; Athletic fit