Gore Bike Wear Men's Countdown Active Shell Vest SHELL:100% Nylon/ WINDSTOPPERMEMBRANE/ MESH:100% Nylon/ LINING:100% Polyester/ Imported Classic: You will be warm and protected on your next downhill thanks to the windproof front of this vest. Comfort fit Napoleon pocket with concealed zip 2-compartment patch pockets on back 2 side openings in back for easy access to jersey pockets Shifted seams for less chafing Zip with semi-lock slider