5-ounce, 100% polyester jersey knit Moisture-wicking Anti-odor properties Recycled, high-performing black tear-away 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 Due to the nature of 100% polyester performance fabrics, special care must be taken throughout the printing process.