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. Covered dyed-to-match zipper with gunmetal pull. Turned hem with side vents. Due to the nature of polyester performance fabrics special care must be taken throughout the printing process. Complies with CPSIA.