Trotzen Sports Shock Covers are made from strong nylon denier and polymer 20 mill vinyl . They are assembled using the toughest threads, and hand sewn with industial machines. The designs are either screen or digitally printed to ensure the best quality and appearance. They are easy to install and remove with durable Velcro attachments. All covers are custom made as they are ordered. So expect two week for delivery. Thanks for ordering from Trotzen Sports.