Gildan® Gildan Performance® T-Shirt 42000. 5-ounce, 100% polyester jersey knit. AquaFX™ moisture wicking. Freshcare™ anti-odor properties. Heat transfer label. Seamed single-needle 3/4″ collar. Double-needle sleeves and bottom hem. Safety Green is compliant with ANSI/ISEA 107 high visibility standards for background color.