Patagonia Mens P-6 LoPro Trucker Hat (One Size (21 1/2-23 1/2), Black) Crown & bill: organic cotton canvas. Back crown: polyester mesh Ball-cap style fit. Mesh back, six panel. Adjustable snap closure. Organic cotton canvas headband. You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!