Our C-FREE carbon neutral -zip not only feels good it does good. With C-FREE we measured the carbon footprint of these styles and we're neutralizing their impact with Carbonfree certification. 5.9-ounce 100% recycled polyester jersey Snag-proof Moisture-wicking Cadet collar Covered dyed-to-match zipper with gunmetal pull Self-fabric cuffs Turned hem with side ventsDue to the nature of polyester performance fabrics special care must be taken throughout the printing process.